This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 40 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... 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. 2. 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) 45J. B) 18J. C) 12J. D) 5J. Show Answer Correct Answer: B) 18J. 3. Liquid widely used in thermometer is ..... A) Mercury. B) Water. C) Lime. D) Blood. Show Answer Correct Answer: A) Mercury. 4. The ..... law of thermodynamics states that entropy is always increasing. A) First. B) Second. C) Third. D) Zeroth. Show Answer Correct Answer: B) Second. 5. 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. 6. 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. 7. For which of these processes is the value of $\Delta$H expected to be positive? 1. The temperature increases when calcium chloride dissolves in water. 2. Steam condenses to liquid water 3. Water boils4. Dry ice sublimes (changes) to vapor A) 4 only. B) 1 only. C) 3 and 4 only. D) 2 and 3 only. Show Answer Correct Answer: C) 3 and 4 only. 8. 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. 9. Internal Energy is denoted by A) E. B) U. C) S. D) Both a & b. Show Answer Correct Answer: D) Both a & b. 10. 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. 11. A unit to measure temperature A) Kelvin. B) Farenheit. C) Lumens. D) None of the above. Show Answer Correct Answer: A) Kelvin. 12. Freezing point of water in Celsius: A) 0. B) 32. C) 100. D) 212. Show Answer Correct Answer: A) 0. 13. 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. 14. An increase in a material's volume when its temperature is increased is A) Heating appliance. B) Specific heat. C) Thermal expansion. D) Convection current. Show Answer Correct Answer: C) Thermal expansion. 15. 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. 16. Work and heat are ..... function. A) State. B) Path. C) All the above. D) None of the above. Show Answer Correct Answer: B) Path. 17. Joule of heat is added to a gaseous system, whose internal energy is 40 J.Then the amount of external work done is A) 150 J. B) 70 J. C) 110 J. D) 40 J. Show Answer Correct Answer: B) 70 J. 18. The symbol for specific heat is ..... A) C. B) Q. C) M. D) T. Show Answer Correct Answer: A) C. 19. As temperature decreases, entropy decreases. At absolute zero, entropy is zero. Which law does this refer to? A) 0th law of thermodynamics. B) 1st law of thermodynamics. C) 2nd law of thermodynamics. D) 3rd law of thermodynamics. Show Answer Correct Answer: D) 3rd law of thermodynamics. 20. 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. 21. 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. 22. 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. 23. 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) Henry's law. B) Roult's law. C) Joule's law. D) Maxwell's equation. E) Fick's law. Show Answer Correct Answer: B) Roult's law. 24. What does zero degrees Kelvin represent? A) Maximum heat. B) Absolute zero. C) Maximum temperature. D) Infinite motion. Show Answer Correct Answer: B) Absolute zero. 25. First law of thermodynamics is also known as ..... A) Law of disproportionation. B) Law of multiple proportions. C) Law of conservation of mass. D) Law of conservation of energy. Show Answer Correct Answer: D) Law of conservation of energy. ← 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