This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part I > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In what three ways does thermal energy transfer? A) Science, energy, motion. B) Radiation, fire, earth. C) Conduction, snow, radiation. D) Convection, conduction, radiation. Show Answer Correct Answer: D) Convection, conduction, radiation. 2. What is the heat capacity ratio for helium? A) 5/3. B) 5/2. C) 7/5. D) 3/2. Show Answer Correct Answer: A) 5/3. 3. The force applied per unit area A) Weight. B) Specific Volume. C) Acceleration. D) Pressure. Show Answer Correct Answer: D) Pressure. 4. The variable for Specific Heat A) Q. B) C. C) T. D) None of the above. Show Answer Correct Answer: B) C. 5. What is an isochoric process? A) The processes in which internal energy remain constant. B) The processes in which volume remain constant. C) The processes in which energy remain constant. D) The processes in which enthalpy remain constant. Show Answer Correct Answer: B) The processes in which volume remain constant. 6. When steam is converted into water, internal energy of the system ..... A) Decreases. B) Remains constant. C) Increases. D) Becomes zero. Show Answer Correct Answer: A) Decreases. 7. Which of the following is true according to Clausius statement? A) It is possible to construct a device that can transfer heat from a cooler body to a hotter body without any effect. B) It is impossible to construct a device that can transfer heat from a cooler body to a hotter body without any effect. C) It is impossible to construct a device that can transfer heat from a hotter body to a cooler body without any effect. D) None of the mentioned. Show Answer Correct Answer: B) It is impossible to construct a device that can transfer heat from a cooler body to a hotter body without any effect. 8. If one mole of the substance is considered, the heat capacity is known as A) Specific heat capacity. B) Free energy. C) Entropy. D) Molar heat capacity. Show Answer Correct Answer: D) Molar heat capacity. 9. What is an adiabatic process? A) The processes in which internal energy remain constant. B) The processes in which entropy remain constant. C) The processes in which enthalpy remain constant. D) The process in which temperature remain constant. Show Answer Correct Answer: B) The processes in which entropy remain constant. 10. In an extensive property of a thermodynamic system A) Extensive heat is transferred. B) Extensive work is done. C) Extensive energy is utilised. D) All of the above. E) None of the above. Show Answer Correct Answer: E) None of the above. 11. What role does entropy play in irreversible processes? A) Entropy decreases in irreversible processes, suggesting stability. B) Entropy remains constant in all processes, reversible or irreversible. C) Entropy increases in irreversible processes, indicating the direction of spontaneous change. D) Entropy is unrelated to the direction of spontaneous change. Show Answer Correct Answer: C) Entropy increases in irreversible processes, indicating the direction of spontaneous change. 12. Evaporation of water from your skin A) Exothermic reaction. B) Endothermic reaction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Endothermic reaction. 13. What is the temperature of absolute zero in Celsius? A) 0$^\circ$C. B) -100$^\circ$C. C) -273.15$^\circ$C. D) -500$^\circ$C. Show Answer Correct Answer: C) -273.15$^\circ$C. 14. Many thermodynamic processes in nature occurs in one direction but not the opposite A) Maybe. B) False. C) True. D) I do not know. Show Answer Correct Answer: C) True. 15. In a given process for an ideal gas, dW = 0 and dQ < 0. Then for the gas A) The temperature will increase. B) The volume will increase. C) The pressure will remain constant. D) The temperature will decrease. Show Answer Correct Answer: D) The temperature will decrease. 16. The amount of heat required to raise the temperature of 1 kg of water through 1$^\circ$C is called A) Specific heat at constant volume. B) Specific heat at constant pressure. C) Kilo calorie. D) None of the above. Show Answer Correct Answer: C) Kilo calorie. 17. Identify the incorrect statement among the following.-A:Specific heat capacity is the quantity of heat required to raise the temperature of a unit mass of a substance by one degree Celsius.-B:Heat capacity depends on the nature of the substance and the amount of substance present.-C:Molar heat capacity is the amount of heat required to raise the temperature of a gram of substance by one Kelvin. A) A. B) B. C) C. D) None of the above. Show Answer Correct Answer: C) C. 18. YOU HAVE TIME!How much energy is needed to raise the temperature of a 20.0g piece of copper from 15.0 degrees Celsius to 25.0 degrees Celsius? (The specific heat of copper is 0.385 J/g C) A) 20 X .385 X (15-25)= 62 J. B) 20 X .385 X (25-15)= 77 J. C) 20 X (25-15) =70 J. D) 20 X .385 X (15-0)= 77 J. Show Answer Correct Answer: B) 20 X .385 X (25-15)= 77 J. 19. ..... is measured by the unit joules (or calories). A) Heat energy. B) Temperature. C) Specific heat. D) None of the above. Show Answer Correct Answer: A) Heat energy. 20. Your enthalpy is-20 and your entropy is-8. Which temperature will give you a spontaneous reaction? A) 1. B) 3. C) 5. D) None of the above. Show Answer Correct Answer: A) 1. 21. The average kinetic energy of the atoms or molecules in a substance is directly related to A) Heat. B) Temperature. C) Brownian Motion. D) Specific heat capacity. Show Answer Correct Answer: B) Temperature. 22. During an adiabatic process, a sample of gas does 400 J of work on the environment. What change occurs with the internal energy of the gas? A) The internal energy increases by 400 J. B) The internal energy decreases by 400 J. C) The internal energy doesn't change. D) There is not enough information if we don't know how much heat was added or removed. Show Answer Correct Answer: B) The internal energy decreases by 400 J. 23. Number of divisions in kelvin scale A) 100. B) 180. C) 130. D) 160. Show Answer Correct Answer: A) 100. 24. The molar heat capacity of in an isothermal process is ..... A) 10. B) Infinity. C) 0. D) 100. Show Answer Correct Answer: B) Infinity. 25. Explain the concept conveyed by the term 'enthalpy change of a reaction': A) The alteration in mass occurring as a result of the reaction. B) The variation in volume observed throughout the reaction. C) The shift in entropy experienced throughout the reaction process. D) The thermal energy released or absorbed during a chemical reaction. Show Answer Correct Answer: D) The thermal energy released or absorbed during a chemical reaction. 26. While running your kinetic energy converts to thermal energy. Which law does this refer to? A) 3rd law of thermodynamics. B) 0th law of thermodynamics. C) 1st law of thermodynamics. D) 2nd law of thermodynamics. Show Answer Correct Answer: C) 1st law of thermodynamics. 27. During an irreversible process, the entropy of the universe: A) Decreases. B) Remains constant. C) Increases. D) Becomes zero. Show Answer Correct Answer: C) Increases. 28. What is a device that transforms heat into work? A) Electric Transformer. B) Heat Engine. C) Generator. D) Converter. Show Answer Correct Answer: B) Heat Engine. 29. What is "absolute zero" according to the Third Law of Thermodynamics? A) The temperature at which matter contains a maximum amount of energy. B) The temperature at which matter is at its most disordered state. C) The temperature at which matter has absolutely no energy at all. D) The temperature at which matter changes from one state to another. Show Answer Correct Answer: C) The temperature at which matter has absolutely no energy at all. 30. How can energy be transferred from a cool object to a warm object? A) Q=mTC. B) Increase thermal energy. C) Use convection. D) Work must be done. Show Answer Correct Answer: D) Work must be done. 31. Measure of disorder and randomness in a system, this is called ..... A) Entropy. B) Heat energy. C) Temperature. D) Thermal equilibrium. Show Answer Correct Answer: A) Entropy. 32. Consider a refrigerator in a kitchen. And consider the refrigerator and everything in it is a system. Which best describes the system's surrounding? A) All of the air in the kitchen. B) The air inside the refrigerator. C) Everything in the universe external to the system. D) None of the above. Show Answer Correct Answer: C) Everything in the universe external to the system. 33. What is the heat gained or lost when 20 kg of water experiences a change in temperature from 10$^\circ$ C to 40$^\circ$ C? (Specific heat of water is 4186 J/kgC) A) 8000 J. B) 2, 511, 600 J. C) -2, 511, 600J. D) -8000 J. Show Answer Correct Answer: B) 2, 511, 600 J. 34. What is the primary unit of temperature in the International System of Units (SI)? A) Celsius. B) Kelvin. C) Fahrenheit. D) Rankine. Show Answer Correct Answer: B) Kelvin. 35. In a molecule potential energy is stored A) In the electron clouds. B) In the protons. C) In the bonds. D) In the outer electron orbitals. Show Answer Correct Answer: C) In the bonds. 36. Gold cools more quickly than aluminum. This means ..... A) Gold has a larger heat capacity. B) They have the same heat capacity. C) Aluminum has a larger heat capacity. D) What is heat capacity?. Show Answer Correct Answer: C) Aluminum has a larger heat capacity. 37. True/False:The 2nd Law of thermodynamics is also known as the Law of Entropy. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 38. In this method of heat transfer heat is carried by a moving medium, like water or air. A) Convection. B) This is impossible. C) Conduction. D) Radiation. Show Answer Correct Answer: A) Convection. 39. This refers as the TOTAL OR TRUE PRESSURE of a fluid or substance A) Absolute Pressure. B) Gauge Pressure. C) Vacuum Pressure. D) Atmospheric Pressure. Show Answer Correct Answer: A) Absolute Pressure. 40. Fahrenheit scale A) The temperature scale that is used only in America and 2 countries in the Caribbean. B) The temperature scale that has water freeze at zero degrees and boil at 100 degrees. C) The temperature scale that has water freeze at 273 K and boil at 373 K. D) None of the above. Show Answer Correct Answer: A) The temperature scale that is used only in America and 2 countries in the Caribbean. 41. Work was done to freeze 1 kg of water. Which statement best describes what happened to this system? A) Entropy is zero. B) Entropy remains constant. C) Entropy increases. D) Entropy decreases. Show Answer Correct Answer: D) Entropy decreases. 42. What is the condition state when it has higher specific volume than specific volume vapor at given temperature? A) Superheated vapor. B) Saturated liquid. C) Saturated vapor. D) Compressed liquid. Show Answer Correct Answer: A) Superheated vapor. 43. Property of thermetic substances used by thermometer to measure temperature is the ..... property. A) Resistance. B) Repulsion. C) Physical. D) Chemical. Show Answer Correct Answer: C) Physical. 44. Identify the incorrect statement among the following.-A:In calorimetry, the heat lost by a hot object is equal to the heat gained by a cold object.-B:The principle of calorimetry states that in an isolated system, the total heat remains constant.-C:Specific heat capacity is irrelevant in calorimetry as it only concerns temperature changes. A) A. B) B. C) C. D) None of the above. Show Answer Correct Answer: C) C. 45. In an irreversible process, there is a A) Loss of heat. B) Gain of heat. C) No loss of heat. D) No gain of heat. Show Answer Correct Answer: A) Loss of heat. 46. Which type of system has no thermal energy? A) A quantum system. B) A system with no friction. C) A system at absolute zero. D) None of the above. Show Answer Correct Answer: C) A system at absolute zero. 47. The variable foe HEAT A) Q. B) C. C) T. D) None of the above. Show Answer Correct Answer: A) Q. 48. Entropy change depends on: A) Heat transfer. B) The number of the particles. C) Change in temperature. D) None of the above. Show Answer Correct Answer: A) Heat transfer. 49. If the final temperature of a system is greater than the initial temperature, $\Delta$t is ..... A) Reduced. B) Eliminated. C) Negative. D) Positive. Show Answer Correct Answer: D) Positive. 50. Mixture of oil and water is an example of ..... system A) Homogeneous. B) Heterogeneous. C) All the above. D) None of the above. Show Answer Correct Answer: B) Heterogeneous. 51. Which principle states that the total entropy of an isolated system can never decrease over time? A) Zeroth Law of Thermodynamics. B) First Law of Thermodynamics. C) Third Law of Thermodynamics. D) Second Law of Thermodynamics. Show Answer Correct Answer: D) Second Law of Thermodynamics. 52. According to Bill Nye, which object has more heat energy? A) A lit match. B) A snowball. C) A 1, 000 pound block of ice. D) None of the above. Show Answer Correct Answer: C) A 1, 000 pound block of ice. 53. What are examples that show heat moving from cold to hot? A) Refrigerator. B) Freezer. C) It's impossible. D) The refrigerator and freezer. Show Answer Correct Answer: D) The refrigerator and freezer. 54. ..... ? ..... is the amount of energy (joules) required to raise the temperature of 1 mole of a substance by 1 K. Units are J/mol-K. A) Thermal energy. B) A calorie. C) Molar heat capacity. D) Specific heat. Show Answer Correct Answer: C) Molar heat capacity. 55. Flow work is also called as A) Work energy. B) Pressure energy. C) Flow energy. D) None of the above. Show Answer Correct Answer: B) Pressure energy. 56. ..... Is a quantity that represent total energy of the system. A) Enthalpy. B) Chemical energy. C) Internal energy. D) Bond energy. Show Answer Correct Answer: C) Internal energy. 57. Energy can neither be created nor destroyed A) Ideal Gas. B) Law of Conservation of Energy. C) Law of Conservation of Mass. D) Zeroth Law. Show Answer Correct Answer: B) Law of Conservation of Energy. 58. Dissolving NH4Cl in water to make a cold pack A) Exothermic reaction. B) Endothermic reaction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Endothermic reaction. 59. The total amount of energy in a system is ALWAYS ..... A) Conserved. B) Increasing. C) Changing. D) Decreasing. Show Answer Correct Answer: A) Conserved. 60. How many laws are there in thermodynamics A) 1. B) 3. C) 2. D) 4. Show Answer Correct Answer: D) 4. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 1Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 2Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 3Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 4Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 5Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 6Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 7Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books