This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part I > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 16 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The efficiency of Carnot cycle depends upon A) Temperature limits. B) Pressure ratio. C) Volume compression ratio. D) Cut-off ratio and compression ratio. Show Answer Correct Answer: A) Temperature limits. 2. What is the value of work done for a closed, reversible, isometric system? A) Negative. B) + /-. C) Zero. D) Positive. Show Answer Correct Answer: C) Zero. 3. Thermodynamics is the study of ..... A) Heat energy turning into other forms of energy. B) Steam engines in history. C) Thermometers. D) Efficient coal mining practices. Show Answer Correct Answer: A) Heat energy turning into other forms of energy. 4. The unit of energy in SI units is(J) A) Joule (J). B) Joule/metre (J/m). C) Joule metre (Jm). D) Watt (W). Show Answer Correct Answer: D) Watt (W). 5. Which of the following is a thermodynamic potential. A) Pressure. B) Enthalpy. C) Volume. D) Temperature. Show Answer Correct Answer: B) Enthalpy. 6. Angstrom pyrheliometer is used to find A) Preportionality constant. B) Gravitational constant. C) Solar constant. D) Gas constant. Show Answer Correct Answer: C) Solar constant. 7. Which of the following variables controls the physical properties of a perfect gas A) Pressure. B) Temperature. C) Volume. D) All of the above. Show Answer Correct Answer: D) All of the above. 8. Exact differential follows A) Eulers theorem. B) Cyclic rule. C) Both a and b. D) None of the above. Show Answer Correct Answer: C) Both a and b. 9. Transfer of heat from low temperature to high temperature is A) None of these. B) Possible by doing some external work. C) Possible by keeping both the bodies in contact. D) Impossible. Show Answer Correct Answer: D) Impossible. 10. What is the condition state when the temperature is lower than saturation temperature at given pressure? A) Saturated liquid. B) Saturated vapor. C) Compressed liquid. D) Superheated vapor. Show Answer Correct Answer: C) Compressed liquid. 11. Refer the the following question:2N$_{2}$ + 3H$_{2}$ $\rightarrow$ 2NH$_{3}$ + 46 kJHow much energy would be produced if only 1 mol of nitrogen was reacted? A) 15 kJ. B) 0.143 kJ. C) 23 kJ. D) 92 kJ. Show Answer Correct Answer: C) 23 kJ. 12. The region in which ozone layer exists is A) Thermosphere. B) Troposphere. C) Stratosphere. D) Mesosphere. Show Answer Correct Answer: C) Stratosphere. 13. Energy of an isolated system is A) Zero. B) One. C) Two. D) None of the above. Show Answer Correct Answer: A) Zero. 14. What is the BEST example of a conductor? A) A ceramic mug. B) A metal bowl. C) A glass cup. D) A wooden block. Show Answer Correct Answer: B) A metal bowl. 15. How does the Joule effect relate to heat and work? A) The Joule effect states that heat cannot be converted into any form of energy. B) The Joule effect relates to heat as it describes the conversion of electrical energy into heat energy, illustrating the transformation of work into heat. C) The Joule effect is unrelated to work and only pertains to mechanical energy. D) The Joule effect describes the conversion of heat into electrical energy. Show Answer Correct Answer: B) The Joule effect relates to heat as it describes the conversion of electrical energy into heat energy, illustrating the transformation of work into heat. 16. The magnetic substance that is used in Adiabatic demagnetization is A) Ferri magnetic. B) Ferro magnetic. C) Diamagnetic. D) Para magnetic. Show Answer Correct Answer: D) Para magnetic. 17. What is true of a gas? A) A gas has a fixed shape and will expand or shrink to fill any container. B) A gas has a fixed shape and has the same volume in any container. C) A gas has a changeable shape and will expand or shrink to fill any container. D) A gas has a changeable shape and has the same volume in any container. Show Answer Correct Answer: C) A gas has a changeable shape and will expand or shrink to fill any container. 18. Which law of thermodynamics is often associated with the concept of absolute zero temperature? A) 1st Law of Thermodynamics. B) Zeroth Law of Thermodynamics. C) 3rd Law of Thermodynamics. D) 2nd Law of Thermodynamics. Show Answer Correct Answer: C) 3rd Law of Thermodynamics. 19. Microscopic thermodynamics is related to A) Molecular dimension. B) Bult substance. C) All the above. D) None of the above. Show Answer Correct Answer: A) Molecular dimension. 20. A system comprising a single phase is called a A) Homogeneous system. B) Closed system. C) Isolated system. D) Heterogeneous system. E) Open system. Show Answer Correct Answer: A) Homogeneous system. 21. A student is preparing to take a bath when she realizes that the hot water tap in the bathroom is not working. The student goes to the kitchen and prepares 20L of 100oC water to mix with 80L of 20oC . What will be the final temperature of the bath water? A) 120 oC. B) 15 oC. C) 36 oC. D) 80 oC. Show Answer Correct Answer: C) 36 oC. 22. An ideal gas undergoes isothermal expansion at constant pressure. During the process A) Enthalpy increases but entropy decreases. B) Enthalpy remains constant but entropy increases. C) Enthalpy decreases but entropy increases. D) Both enthalpy and entropy remain constant. Show Answer Correct Answer: B) Enthalpy remains constant but entropy increases. 23. ..... is used to determine the calorific value of food. A) Coffee cup calorimeter. B) Bomb calorimeter. C) All the above. D) None of the above. Show Answer Correct Answer: B) Bomb calorimeter. 24. A gas in a closed container is heated, causing the lid of the container to rise. The gas performs 3J of work to raise the lid, such that is has a final total energy of 15J. How much heat energy was added to the system? A) 12J. B) 5J. C) 18J. D) 45J. Show Answer Correct Answer: C) 18J. 25. Liquid widely used in thermometer is ..... A) Blood. B) Water. C) Lime. D) Mercury. Show Answer Correct Answer: D) Mercury. 26. The ..... law of thermodynamics states that entropy is always increasing. A) Second. B) Third. C) Zeroth. D) First. Show Answer Correct Answer: A) Second. 27. Zoe, Ava, and Charlotte are studying the process of dry ice sublimation. They observe that when CO$_{2}$(g) changes to CO$_{2}$(s), the entropy of the system: A) Decreases. B) Increases. C) Remains the same. D) None of the above. Show Answer Correct Answer: A) Decreases. 28. Internal energy of a system refers to A) The kinetic energy of molecules of a system. B) The potential energy of molecules of a system. C) Sum of KE and PE of a system. D) Either KE or PE. Show Answer Correct Answer: C) Sum of KE and PE of a system. 29. Which of the following phenomenon is reversible? A) Water fall. B) Charging of a battery. C) Rusting of iron by chemical change. D) Production of heat by rubbing of hands. Show Answer Correct Answer: B) Charging of a battery. 30. Internal Energy is denoted by A) E. B) U. C) S. D) Both a & b. Show Answer Correct Answer: D) Both a & b. 31. What is absolute zero? A) 0 K. B) 273 K. C) 0$^{o}$C. D) None of the above. Show Answer Correct Answer: A) 0 K. 32. A unit to measure temperature A) Kelvin. B) Farenheit. C) Lumens. D) None of the above. Show Answer Correct Answer: A) Kelvin. 33. Freezing point of water in Celsius: A) 100. B) 212. C) 32. D) 0. Show Answer Correct Answer: D) 0. 34. A heat source at 800 K loses 2000 kJ of heat to a sink at (a) 500 K and (b) 750 K. Determine which heat transfer process is more irreversible. A) A. B) B. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. 35. An increase in a material's volume when its temperature is increased is A) Heating appliance. B) Convection current. C) Specific heat. D) Thermal expansion. Show Answer Correct Answer: D) Thermal expansion. 36. Kelvin-Planck and Clausius' statements of second law are: A) Equal. B) Equivalent. C) Different. D) None of the above. Show Answer Correct Answer: B) Equivalent. 37. Work and heat are ..... function. A) State. B) Path. C) All the above. D) None of the above. Show Answer Correct Answer: B) Path. 38. Joule of heat is added to a gaseous system, whose internal energy is 40 J.Then the amount of external work done is A) 40 J. B) 70 J. C) 110 J. D) 150 J. Show Answer Correct Answer: B) 70 J. 39. The symbol for specific heat is ..... A) Q. B) T. C) M. D) C. Show Answer Correct Answer: D) C. 40. As temperature decreases, entropy decreases. At absolute zero, entropy is zero. Which law does this refer to? A) 2nd law of thermodynamics. B) 1st law of thermodynamics. C) 3rd law of thermodynamics. D) 0th law of thermodynamics. Show Answer Correct Answer: C) 3rd law of thermodynamics. 41. Your enthalpy is high and negative but your entropy is also negative. What type of temperature would you want to get a spontaneous reaction? A) Low. B) High. C) All the above. D) None of the above. Show Answer Correct Answer: A) Low. 42. Why is water often used as a coolant in automobiles, other than the fact that it is abundant? A) Water expands very little as it is heated. B) The freezing temperature of water has a relatively large value. C) The specific heat of water is relatively small and its temperature can be rapidly decreased. D) The specific heat of water is relatively large and it can store a great deal of thermal energy. E) Water does not easily change into a gas. Show Answer Correct Answer: D) The specific heat of water is relatively large and it can store a great deal of thermal energy. 43. The internal energy change per degree rise of temperature A) Heat capacity at constant volume. B) Heat capacity at constant pressure. C) Heat capacity at constant temperature. D) All the above. Show Answer Correct Answer: A) Heat capacity at constant volume. 44. A law which is applicable only to ideal vapours and liquids, that equates the equilibrium partial pressures of a solution component in the coexisting phases, is known as A) Roult's law. B) Henry's law. C) Fick's law. D) Maxwell's equation. E) Joule's law. Show Answer Correct Answer: A) Roult's law. 45. What does zero degrees Kelvin represent? A) Maximum temperature. B) Maximum heat. C) Infinite motion. D) Absolute zero. Show Answer Correct Answer: D) Absolute zero. 46. What name is given to the process that takes place at constant pressure A) Isobaric. B) Isothermal. C) Adiabetic. D) Isochoric. Show Answer Correct Answer: A) Isobaric. 47. The unit for HEAT (thermal energy) A) Calories. B) Cal/gram degree Celsius. C) Degrees Celsius. D) None of the above. Show Answer Correct Answer: A) Calories. 48. As the kinetic energy of the molecules in a substance increases, the temperature of the substance ..... A) Increases. B) Decreases. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increases. 49. Heat flow into a system is ..... , and heat flow out of the system is ..... A) Negative, Negative. B) Negative, positive. C) Positive, Negative. D) Positive, positive. Show Answer Correct Answer: C) Positive, Negative. 50. Is this statement is true or falseIt is not possible to ascertain the absolute value of internal energy. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 51. In a thermodynamic process, the work done on a system is 50 J and the heat added to the system is 30 J. What is the change in internal energy of the system? A) -80 J. B) 80 J. C) 20 J. D) -20 J. Show Answer Correct Answer: D) -20 J. 52. The ideal thermodynamic cycle is called A) The Somenoc cycle. B) The Nitrogen cycle. C) The Carnot cycle. D) The Crovener cycle. Show Answer Correct Answer: C) The Carnot cycle. 53. The PV diagram for an adiabatic process looks similar to the PV diagram for ..... A) Isobaric process. B) Isothermal process. C) It does not look similar to any of these charts. D) Isochoric process. Show Answer Correct Answer: B) Isothermal process. 54. Which of the following process is used to do maximum work done on the ideal gas if the gas is compressed to half of its initial volume? A) Isochoric. B) Isobaric. C) Isothermal. D) Adiabatic. Show Answer Correct Answer: D) Adiabatic. 55. A metal baking pan heats up and bakes brownies. This is an example of? A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Conduction. 56. What is the process of heat transfer through direct contact called? A) Radiation. B) Conduction. C) Convection. D) Evaporation. Show Answer Correct Answer: B) Conduction. 57. Which branch of chemistry deals with heat flow? A) Electrochemistry. B) Nuclear Chemistry. C) Chemical Kinetics. D) Thermodynamics. Show Answer Correct Answer: D) Thermodynamics. 58. How does a Carnot engine operate and what is its efficiency? A) The efficiency of a Carnot engine is 1-(Tc/Th). B) The efficiency of a Carnot engine is 1 + (Tc/Th). C) The efficiency of a Carnot engine is Tc/Th. D) A Carnot engine operates without any heat loss. Show Answer Correct Answer: A) The efficiency of a Carnot engine is 1-(Tc/Th). 59. Heat will never flow from a cold object to a hot object on its own describes which law of thermodynamics? A) 1st Law of thermodynamics. B) 2nd Law of thermodynamics. C) 4th Law of thermodynamics. D) 3rd Law of thermodynamics. Show Answer Correct Answer: B) 2nd Law of thermodynamics. 60. According to the first law of thermodynamics, energy within a system: A) Remains constant. B) Increases with time. C) Decreases with time. D) Flows spontaneously. Show Answer Correct Answer: A) Remains constant. ← 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