This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 45 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 45 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which law states "Energy can neither be created nor destroyed. It can only be transformed" ? A) Zeroth Law. B) 1st Law. C) 2nd Law. D) 3rd law. Show Answer Correct Answer: B) 1st Law. 2. The specific heat of aluminum is 0.9025 J/g$^\circ$C. How much heat is released when a 10.0 g piece of aluminum foil is taken out of the oven and cools from 100.0$^\circ$ to 50.0$^\circ$? A) -451 J. B) 451 J. C) -554 J. D) 554 J. Show Answer Correct Answer: A) -451 J. 3. What is the molar heat capacity in an adiabatic process? A) Zero. B) 10. C) 100. D) Infinity. Show Answer Correct Answer: A) Zero. 4. What are the units for Heat (Q)? A) G or kg. B) C or K. C) Cal or J. D) Cal/g C or J/kg K. Show Answer Correct Answer: C) Cal or J. 5. According to kinetic theory of heat A) Temperature should rise during boiling. B) Temperature should fall during freezing. C) At low temperature all bodies are in solid state. D) At absolute zero there is absolutely no vibration of molecules. E) None of the above. Show Answer Correct Answer: D) At absolute zero there is absolutely no vibration of molecules. 6. What happens to the entropy of an isolated system over time, according to the Second Law of Thermodynamics? A) It decreases. B) It remains constant. C) It increases. D) It fluctuates. Show Answer Correct Answer: C) It increases. 7. If work is done by the system, the energy of the system decreases, work is taken as ..... A) -w. B) +w. C) All the above. D) None of the above. Show Answer Correct Answer: A) -w. 8. The second law of thermodynamics states that in any energy exchange, if no energy enters or leaves the system, the potential energy of the state will always be: A) Increased. B) Decreased. C) Converted to mass. D) Converted to work. Show Answer Correct Answer: B) Decreased. 9. An example of PASSIVE SOLAR HEATING would be ..... A) Having windows with southern exposure. B) Pumping water up to a solar panel to be heated. C) Using solar heated water to produce electricity. D) None of the above. Show Answer Correct Answer: A) Having windows with southern exposure. 10. Thermal energy transfer through electromagnetic waves is A) Radiation. B) Conduction. C) Convection. D) Science. Show Answer Correct Answer: A) Radiation. 11. Which of the following is an intensive property of a thermodynamic system? A) Volume. B) Temperature. C) Mass. D) Energy. Show Answer Correct Answer: B) Temperature. 12. According to the First Law of Thermodynamics, which of the following statements is true? A) Heat is a form of energy that can be created and destroyed. B) Heat can be transferred from a cold object to a hot object without external energy. C) Heat is a form of energy that can neither be created nor destroyed, only transferred. D) Heat is not a form of energy and does not follow the law of conservation. Show Answer Correct Answer: C) Heat is a form of energy that can neither be created nor destroyed, only transferred. 13. The equation that relates enthalpy, temperature and entropy is A) Hess's Law. B) Second Law of Thermodynamics. C) Gibbs Free Energy. D) Calorimetry. Show Answer Correct Answer: C) Gibbs Free Energy. 14. The temperature of a refrigerant increases as it passes through the metal coils in the interior of a refrigerator because the air inside the refrigerator- A) Absorbs materials in the coils. B) Exerts a force on the coils. C) Transfers heat to the coils. D) Does work on the coils. Show Answer Correct Answer: C) Transfers heat to the coils. 15. Burning your hand on a hot pan A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Conduction. 16. ..... is the randomness or disorder of a thermodynamic system. A) Temperature. B) Heat. C) Entropy. D) Energy. Show Answer Correct Answer: C) Entropy. 17. The first law of thermodynamics is based on what essential idea? A) Thermal equilibrium is reached between two or more objects in direct contact. B) Energy is conserved in thermodynamic systems. C) No engine can be 100% efficient. D) A system can have zero energy if it is cooled to 0 K. Show Answer Correct Answer: B) Energy is conserved in thermodynamic systems. 18. The equation for the third law of thermodynamics is: A) $\Delta S_{univ}=\Delta S_{sys}-\Delta S_{surr}$. B) $\Delta S_{sys}=\Delta S_{univ}+\Delta S_{surr}$. C) $\Delta S_{sys}=\Delta S_{univ}-\Delta S_{surr}$. D) $\Delta S_{sys}=0$. Show Answer Correct Answer: D) $\Delta S_{sys}=0$. 19. If object A and B have the same temperature, and object C is the same temperature as object A the all three are the same temperature. This tendency illustrates which of the following laws of thermodynamics? A) Zeroth Law. B) First Law. C) Second Law. D) Third Law. Show Answer Correct Answer: A) Zeroth Law. 20. The Sun warms the Earth by ..... A) Convection. B) Conduction. C) Radiation. D) Induction. Show Answer Correct Answer: C) Radiation. 21. ..... of thermodynamics is used to understand the concept of energy conservation. A) Second law. B) First law. C) Third law. D) Zeroth law. Show Answer Correct Answer: B) First law. 22. Mark the option the correctly completes the sentence below:"If thermal energy is ADDED to a system, it should:" A) Get colder. B) Get warmer. C) Not change its temperature. D) Not show changes in molecular kinetic energy. Show Answer Correct Answer: B) Get warmer. 23. Which law of Thermodynamics helps to explain how car engines work? A) Zeroth Law. B) 1st Law. C) 2nd Law. D) 3rd Law. Show Answer Correct Answer: B) 1st Law. 24. Mathematical equation of first law of thermodynamics isHere U means delta U A) U=q+W. B) Q=U+W. C) W=U+q. D) None of these. Show Answer Correct Answer: A) U=q+W. 25. If 100. g of aluminum at 145$^\circ$C gains 6, 800. J of heat, what is the final temperature (T$_{final}$) of the aluminum? Aluminum has a specific heat of 0.897 J/g$^\circ$C. (Q=ms$\Delta$T) A) -69.0$^\circ$C. B) 0.522$^\circ$C. C) 221$^\circ$C. D) None of the above. Show Answer Correct Answer: C) 221$^\circ$C. ← 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