This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. It is possible to reach absolute zero A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. H$_{2}$ + 2 C + N$_{2 }$+ 270.3 kJ $\rightarrow$ 2 HCNIs this reaction endothermic or exothermic? A) Endothermic. B) Exothermic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Endothermic. 3. The amount of heat required to raise the temperature of 1g of something by 1 C, is called what? A) Latent Heat. B) Specific Heat. C) Heat of Formation. D) Heat of Fusion. Show Answer Correct Answer: B) Specific Heat. 4. Which of the following processes is an example of heat transfer by convection? A) Boiling water in a pot. B) Sunlight warming the Earth. C) Touching a hot iron. D) Using a microwave oven. Show Answer Correct Answer: A) Boiling water in a pot. 5. What is enthalpy? A) A measurement of chaos. B) The heat content of a system. C) All the above. D) None of the above. Show Answer Correct Answer: B) The heat content of a system. 6. Total amount of energy in the universe is A) Increasing. B) Decreasing. C) Constant. D) None of the above. Show Answer Correct Answer: C) Constant. 7. The SI unit of heat and energy is the ..... A) Calorie. B) Heat. C) Joule. D) Watt. Show Answer Correct Answer: C) Joule. 8. Internal energy depends on A) Only pressure. B) Only Volume. C) Only Temperature. D) Only Mass. Show Answer Correct Answer: C) Only Temperature. 9. C (diamond) $\rightarrow$ $\Delta$ A) Graphite has more energy than diamond. B) Graphite is thermodynamically more stable than diamond. C) Thermodynamic stability cannot be predicted. D) Both graphite and diamond are energetically equal. Show Answer Correct Answer: B) Graphite is thermodynamically more stable than diamond. 10. For the reaction 2H$_{2}$(g) + O$_{2}$(g) $\rightarrow$ 2H$_{2}$O(g) the bond enthalpies (in kJ/mol) are H-H = x, O=O = y, O-H = zWhich calculation will give the value, in kJ/mol, of $\Delta$H for the reaction? A) 2x + y-2z. B) 4z-2x-y. C) 2x + y-4z. D) 2z-2x-y. Show Answer Correct Answer: C) 2x + y-4z. 11. Which of the following changes increases the entropy? A) Evaporation of water. B) Freezing of water. C) Condensation of water. D) None of the above. Show Answer Correct Answer: A) Evaporation of water. 12. "When thermal energy is converted into work, some thermal energy is always transferred to the surroundings." A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. A reaction has a positive $\Delta$H and a positive $\Delta$S. Which of the following is true? A) It will be spontaneous at all temperatures. B) It will be nonspontaneous at all temperatures. C) It will be spontaneous at low temperatures. D) It will be spontaneous at high temperatures. Show Answer Correct Answer: D) It will be spontaneous at high temperatures. 14. Which statement is true regarding endothermic reactions? A) Temperature change is positive and enthalpy change is positive. B) Temperature change is positive and enthalpy change is negative. C) Temperature change is negative and enthalpy change is positive. D) Temperature change is negative and enthalpy change is negative. Show Answer Correct Answer: C) Temperature change is negative and enthalpy change is positive. 15. In physics, there is no such thing as A) Heat. B) Cold. C) Energy. D) Temperature. Show Answer Correct Answer: B) Cold. 16. In which direction does thermal energy flow? A) From hot to cold. B) From cold to hot. C) From light to dark. D) Either from hot to cold or from cold to hot. Show Answer Correct Answer: A) From hot to cold. 17. Which one of the following statements best describes a reversible process? A) All heat input into the system is converted into work during the process. B) The overall entropy of the system does not increase during the process. C) The initial and final temperatures for the process are the same. D) The entropy of the system decreases during the process. E) Statements (b) and (c) both describe a reversible process. Show Answer Correct Answer: B) The overall entropy of the system does not increase during the process. 18. The change in energy of a system equals the heat added to it plus the work done on it. A) 1st law of thermodynamics. B) 2nd law of thermodynamics. C) 3rd law of thermodynamics. D) Zeroth Law. Show Answer Correct Answer: A) 1st law of thermodynamics. 19. Which are the three means by which heat can be transferred from one environment to another? A) Conduction, compression, and refraction. B) Convection, radiation, and transformation. C) Conduction, convection, and radiation. D) Conduction, contamination, and reflection. Show Answer Correct Answer: C) Conduction, convection, and radiation. 20. Thermodynamics is the study of three E's: A) Energy, Equilibrium, Engine. B) Energy, Equality, Engine. C) Energy, Equilibrium, Entropy. D) Enthalpy, Equilibrium, Engine. Show Answer Correct Answer: C) Energy, Equilibrium, Entropy. 21. The quantity of heat absorbed or liberated in the course of a reaction is measured in terms of A) Entropy change. B) Enthalpy change. C) Change in work. D) Free energy change. Show Answer Correct Answer: B) Enthalpy change. 22. According to the Third Law of Thermodynamics, what is impossible to reach? A) Thermal equilibrium. B) Absolute zero temperature. C) Maximum entropy. D) Energy conservation. Show Answer Correct Answer: B) Absolute zero temperature. 23. ..... is a measure of the average kinetic energy of all the particles that make up an object. A) Density. B) Conduction. C) Radiation. D) Temperature. Show Answer Correct Answer: D) Temperature. 24. Heat of combustion is always A) +ve. B) -ve. C) 0. D) None of the above. Show Answer Correct Answer: B) -ve. 25. A thermodynamic cycle must: A) Produce a work output. B) Return the system to its initial state at the end of a set of processes. C) Use the same working fluid throughout, i.e. no renewal of the fluid. D) Not allow any transfer of mass across the system boundary. Show Answer Correct Answer: B) Return the system to its initial state at the end of a set of processes. ← PreviousNext →Related 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 8Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 9Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books