This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Silicon sealed steel cylinder containing liquid nitrogen is an example of ..... system. A) Open. B) Closed. C) Isolated. D) None of the above. Show Answer Correct Answer: C) Isolated. 2. A carnot engine operates between 227$^{o}$ C and 127$^{o}$ C. The efficiency of the engine is A) 10%. B) 20%. C) 40%. D) 50%. Show Answer Correct Answer: B) 20%. 3. Which law of thermodynamics is also known as the Law of Energy Conservation? A) Zeroth Law. B) First Law. C) Second Law. D) Third Law. Show Answer Correct Answer: B) First Law. 4. If the pressure is 10 bar and gas is expanded form 10 L to 100 LWork done will be A) -900 barL. B) +900 bar L. C) 0. D) 1100. Show Answer Correct Answer: A) -900 barL. 5. Evelyn, Elijah, and Hannah are studying for a chemistry test. They come across a question:'What does Gibbs Free Energy tell us in the context of a chemical reaction, such as the rusting of iron?' A) It tells us how much energy is given off by the rusting of iron. B) It tells us the tendency of the rusting of iron to become "random" . C) It tells us how spontaneous the rusting of iron is. D) None of the above. Show Answer Correct Answer: C) It tells us how spontaneous the rusting of iron is. 6. The symbol of Helmholtz free energy is ..... A) A. B) H. C) B. D) E. Show Answer Correct Answer: A) A. 7. In a closed system, if the internal energy increases by 50 J and 20 J of work is done by the system, what is the amount of heat added to the system? A) 30 J. B) 70 J. C) 50 J. D) 20 J. Show Answer Correct Answer: B) 70 J. 8. A piston-cylinder device contains a liquid-vapor mixture of water at 300 K. During a constant-pressure process, 750 kJ of heat is transferred to the water. As a result, part of the liquid in the cylinder vaporizes. Determine the entropy change of the water during this process. A) 2.5 kJ/K. B) 25 kJ/K. C) 0.4 K/kJ. D) 40 K/kJ. Show Answer Correct Answer: A) 2.5 kJ/K. 9. Which of the following types of reactions would decrease the entropy within a cell? A) Digestion. B) Catabolic reactions. C) Anabolic reactions. D) Respiration. Show Answer Correct Answer: C) Anabolic reactions. 10. Describe the relationship between pressure, volume, and temperature in gases. A) Pressure, volume, and temperature in gases are related by the ideal gas law:PV = nRT. B) Pressure and volume are independent of temperature. C) Temperature has no effect on gas behavior. D) Increasing volume always increases pressure. Show Answer Correct Answer: A) Pressure, volume, and temperature in gases are related by the ideal gas law:PV = nRT. 11. A process where volume of a system remain same is A) Isobaric Process. B) Isochoric Process. C) Adiabatic Process. D) Isothermal Process. Show Answer Correct Answer: B) Isochoric Process. 12. Thermal energy always travels from ..... temperatures to ..... temperatures. A) Higher / Lower. B) Lower / Higher. C) Higher / Higher. D) None of the above. Show Answer Correct Answer: A) Higher / Lower. 13. Which of the following statements is NOT a correct assumption of the kinetic theory of an ideal gas? A) The molecules are in random motion. B) The volume of the molecules is negligible compared with the volume occupied by the gas. C) The molecules obey Newton's laws of motion. D) The collisions between molecules are inelastic. Show Answer Correct Answer: D) The collisions between molecules are inelastic. 14. How does radiation allow for heat transfer? A) Through the direct contact of two objects. B) By the movement of fluids or gases. C) By the emission or absorption of electromagnetic radiation. D) By increasing the disorder in a system. Show Answer Correct Answer: C) By the emission or absorption of electromagnetic radiation. 15. $\Delta$H value in an exothermic reaction is a positive number. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 16. A closed system, with no change in KE and PE, is called A) Control Volume. B) Stationary System. C) Flow System. D) Isolated system. Show Answer Correct Answer: B) Stationary System. 17. In an endothermic reaction, the enthalpy change ($\Delta$H) is: A) Positive. B) Negative. C) Zero. D) Undefined. Show Answer Correct Answer: A) Positive. 18. The first law of thermodynamics is a restatement of the A) Zeroth law of thermodynamics. B) Law of heat addition. C) Principle of entropy. D) Conservation of energy. Show Answer Correct Answer: D) Conservation of energy. 19. What is the name of a device that converts thermal energy into work? A) Heating system. B) Heat engine. C) Entropy. D) Power. Show Answer Correct Answer: B) Heat engine. 20. Which best describes ENTROPY? A) Useful heat energy needed to drive an engine. B) Heat that can be stored to be used at a later date. C) Random energy that escapes from the system. D) A state of order in a physical system. Show Answer Correct Answer: C) Random energy that escapes from the system. 21. Riyaan is conducting an experiment to understand the first law of thermodynamics. Which of the following is not the limitation of the first law of thermodynamics? A) Can not find the possibility of a process. B) Can not find the amount of energy transfer. C) Does not differentiate the forms of energy. D) None of the above. Show Answer Correct Answer: B) Can not find the amount of energy transfer. 22. Transfer of heat by contact and collisions between the molecules in a substance. A) Conduction. B) Radiation. C) Convection. D) None of the above. Show Answer Correct Answer: A) Conduction. 23. Entropy of a system increases when a reaction increases the number of particles. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. A) When a solid melts, there is A) An increase in enthalpy. B) An increase in entropy. C) A decrease in internal energy. D) Nothing can be predicted. Show Answer Correct Answer: B) An increase in entropy. 25. Given the following information, calculate $\Delta$G$^{0}$ for the reaction below at 25$^{0}$C:(K = $^{0}$C + 273)SnCl$_{4}$(l) + 2 H$_{2}$0(l) $\rightarrow$ SnO$_{2}$(S) + 4HCl(g), $\Delta$H$^{0}$=133.0 kJ and $\Delta$S$^{0}$ =401.5 J/K A) -252.6 kJ. B) -13.4 kJ. C) 13.4 kJ. D) 252.6 kJ. Show Answer Correct Answer: C) 13.4 kJ. ← 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