This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is an intensive property of a thermodynamics systems? A) Volume. B) Temperature. C) Mass. D) Energy. Show Answer Correct Answer: B) Temperature. 2. The first law of thermodynamics states that energy is A) Created. B) Destroyed. C) Conserved. D) Created and destroyed. Show Answer Correct Answer: C) Conserved. 3. A) Thermodynamically temperature is A) Intensive property. B) Extensive property. C) Semi-Intensive property. D) None of the above. Show Answer Correct Answer: A) Intensive property. 4. What phase change brings an increase in entropy? A) G$\rightarrow$s. B) L$\rightarrow$s. C) L$\rightarrow$g. D) G$\rightarrow$l. Show Answer Correct Answer: C) L$\rightarrow$g. 5. Wiens law in radiation is applicable to A) Longer wavelengths. B) Shorter wavelengths. C) All wavelengths. D) None of the above. Show Answer Correct Answer: B) Shorter wavelengths. 6. You blow up a balloon and do not tie the end. When you let go the air flows out of the balloon. Why? A) The balloon is doing work. B) Energy is being concentrated. C) Entropy is decreasing. D) Entropy is increasing. Show Answer Correct Answer: D) Entropy is increasing. 7. Entropy is a measure of disorder in a system. According to the second law of thermodynamics, the entropy of an isolated system will: A) Always increase. B) Always decrease. C) Remain constant. D) Fluctuate randomly. Show Answer Correct Answer: A) Always increase. 8. Potential and Kinetic energy is also known as ..... A) Geothermal energy. B) Kinesthetic. C) Mechanical energy. D) Thermal energy. Show Answer Correct Answer: C) Mechanical energy. 9. Cp is always A) Equal to Cv. B) Less than Cv. C) Greater than Cv. D) Equal to zero. Show Answer Correct Answer: C) Greater than Cv. 10. An ice cube is placed on a table and begins to melt. The following conclusion can be made. A) Energy is being absorbed by the table which causes the cube to melt. B) Energy is being transferred from the table to the ice cube. C) Energy is being created by the air and table and making the cube heat up. D) None of the above. Show Answer Correct Answer: B) Energy is being transferred from the table to the ice cube. 11. What is an isothermal process? Give an example. A) An example of an isothermal process is the expansion of an ideal gas in a piston at a constant temperature. B) The boiling of water at a constant pressure. C) The compression of a gas at varying temperatures. D) The freezing of water at a constant temperature. Show Answer Correct Answer: A) An example of an isothermal process is the expansion of an ideal gas in a piston at a constant temperature. 12. The process ( $pv^n=const.$ A) 0. B) 1. C) 1.4. D) $\infty$. Show Answer Correct Answer: D) $\infty$. 13. Describe the Carnot cycle and its significance. A) The Carnot cycle is a theoretical thermodynamic cycle that defines the maximum efficiency of heat engines. B) The Carnot cycle is a refrigeration process that cools substances effectively. C) The Carnot cycle operates at 100% efficiency under all conditions. D) The Carnot cycle is a practical engine design used in modern vehicles. Show Answer Correct Answer: A) The Carnot cycle is a theoretical thermodynamic cycle that defines the maximum efficiency of heat engines. 14. The Fahrenheit scale is divided into ..... divisions A) 180. B) 120. C) 60. D) 90. Show Answer Correct Answer: A) 180. 15. Everything else outside the area of study A) System. B) Surroundings. C) Thermodynamics. D) Thermochemistry. Show Answer Correct Answer: B) Surroundings. 16. Describe the energy change that takes place when a chemical reaction occurs. A) Energy is given out. B) Energy is taken in. C) Energy is taken in and then given out. D) Energy is given out and then taken in. Show Answer Correct Answer: C) Energy is taken in and then given out. 17. Which is an example of a heat engine? A) Windmill. B) Automobile engine. C) Solar panels. D) Volcano. Show Answer Correct Answer: B) Automobile engine. 18. During phase change ..... does not change. A) Pressure. B) Temperature. C) Work. D) Volume. Show Answer Correct Answer: B) Temperature. 19. Which of the following forms would have the greatest standard molar entropy? A) H$_{2}$(g). B) H$_{2}$(l). C) H$_{2}$O(g). D) H$_{2}$O(l). Show Answer Correct Answer: C) H$_{2}$O(g). 20. In a spontaneous process, the entropy of the universe decreases. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. Hess's Law allows us to calculate: A) The change in entropy of a reaction. B) The change in enthalpy of a reaction. C) The change in Gibbs free energy of a reaction. D) The change in temperature of a reaction. Show Answer Correct Answer: B) The change in enthalpy of a reaction. 22. The First Law of Thermodynamics indicates that A) Work is force exerted over a distance. B) Energy is neither created not destroyed. C) An increase in disorder is part of any spontaneous process. D) Work is a state function. Show Answer Correct Answer: B) Energy is neither created not destroyed. 23. Which of the following is true for a closed system? A) Mass entering = mass leaving. B) Mass does not enter or leave the system. C) Mass entering can be more or less than the mass leaving. D) None of the mentioned. Show Answer Correct Answer: B) Mass does not enter or leave the system. 24. Why does water heat heat up and cool down VERY SLOWLY? A) High Specific Heat. B) Low Specific Heat. C) It's solid. D) It's always cold. Show Answer Correct Answer: A) High Specific Heat. 25. A catalyst works by A) Changing the order of the reaction. B) Increasing the temperature. C) Lowering the activation energy. D) Decreasing the amount of product. Show Answer Correct Answer: C) Lowering the activation 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