This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. According to first law of thermodynamics: A) Work done by a system is equal to heat transferred by the system. B) Entropy of a system remains constant. C) The internal energy and the entropy of the process remain constant. D) The total energy of a system remains constant. Show Answer Correct Answer: D) The total energy of a system remains constant. 2. What is the significance of the Third Law of Thermodynamics? A) It defines the absolute zero of temperature. B) It states that energy is conserved in a system. C) It explains the increase of entropy in a system. D) It describes the flow of heat between systems. Show Answer Correct Answer: A) It defines the absolute zero of temperature. 3. According to Joule-Kelvin effect which of the following suffer slight rise in temperature A) Oxygen. B) Nitrogen. C) Helium. D) Carbon Dioxide. Show Answer Correct Answer: C) Helium. 4. The efficiency of carnot heat engine A) 1+(Temperature of sink/Temperature of source). B) 1-(Temperature of sink/Temperature of source). C) 1+(Temperature of source/Temperature of sink). D) 1+(Temperature of source/Temperature of sink). Show Answer Correct Answer: B) 1-(Temperature of sink/Temperature of source). 5. The law of conservation of energy; total amount of energy in the universe is constant and be neither created or destroyed. A) First Law of Thermodynamics. B) Second Law of Thermodynamics. C) All the above. D) None of the above. Show Answer Correct Answer: A) First Law of Thermodynamics. 6. The entropy of the universe is always increasing. 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: C) 2nd law of thermodynamics. 7. Which of the following is a correct statement about the Zeroth Law of Thermodynamics? A) It defines the concept of temperature. B) It states that energy cannot be created or destroyed. C) It explains the relationship between pressure and volume. D) It describes the process of heat transfer. Show Answer Correct Answer: A) It defines the concept of temperature. 8. A) A process in which temperature remain constant is called A) 1) Adiabatic process. B) 2) Isothermal process. C) 3) Reversible process. D) Irreversible process. Show Answer Correct Answer: B) 2) Isothermal process. 9. NASA developed a reflective foil barrier to help shield spacecraft from heat transfer in space. These reflective barriers are now used in homes to prevent heat transfer by the same method. What method of heat transfer is being prevented by the reflective barrier? A) Conduction. B) Convection. C) Entropy. D) Radiation. Show Answer Correct Answer: D) Radiation. 10. Avni and Siya are conducting an experiment with two reversible heat engines working between the same source and sink. For a given heat input, they will have equal ..... A) Efficiency. B) Work output. C) Heat rejection. D) All the options. Show Answer Correct Answer: D) All the options. 11. The First Law of Thermodynamics describes the conservation of energy A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. A bathtub and a coffee cup both contain water at 90$^\circ$C. Which of the following is true? A) The cup contains more heat, and the two have the same temperature. B) The two contain the same amount of heat, and the bathtub has a higher temperature. C) The bathtub contains more heat, and the two have the same temperature. D) The two contain the same amount of heat and have the same temperature. Show Answer Correct Answer: C) The bathtub contains more heat, and the two have the same temperature. 13. Symbol that indicates that energy is released. A) U. B) Q. C) -Q. D) W. Show Answer Correct Answer: C) -Q. 14. When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called A) Zeroth law of thermodynamics. B) First law of thermodynamics. C) Second law of thermodynamics. D) Kelvin Planck's law. Show Answer Correct Answer: A) Zeroth law of thermodynamics. 15. Which type of substance has the least entropy? A) A solid at 0$^{o}$C. B) A solid at 0$^{o}$F. C) A solid at 0 K. D) None of the above. Show Answer Correct Answer: C) A solid at 0 K. 16. Calculate the number of kJ required for the reaction shown below, if you begin with 45.0 grams of water (H2O), and the $\Delta$Hrxn = +571.6 kJ. 2 H2O(l) $\rightarrow$ 2 H2(g) + O2(g) A) 714 kJ. B) 729 kJ. C) 747 kJ. D) 800 kJ. Show Answer Correct Answer: A) 714 kJ. 17. Branch of science that deals with the transformation energy to another A) Kinematics. B) Dynamics. C) Chemistry. D) Thermodynamics. Show Answer Correct Answer: D) Thermodynamics. 18. What is entropy? 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: A) A measurement of chaos. 19. When an ideal gas expands at constant pressure, the change in the internal energy must be positive. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. Which of the following is an intensive property? A) Entropy. B) Enthalpy. C) Internal energy. D) Density. Show Answer Correct Answer: D) Density. 21. Gas within a piston is compressed from a volume of1.35x10$^{-2}$ m$^{3}$ to a volume of 12.5x10$^{-3}$ m$^{3}$. What quantity of work is done if the compression occurs under a constant pressure of 4.0x10$^{5}$ Pa? A) 200 J. B) -200 J. C) 400 J. D) -400 J. Show Answer Correct Answer: D) -400 J. 22. Warm air currents move upward from the earth. This is an example of A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Convection. 23. What is the difference between adiabatic process and isentropic process? A) Adiabatic:heat transfer is not equal to zeroIsentropic:heat transfer is zero. B) Both:heat transfer = 0Isentropic:reversible. C) Both:heat transfer is not equal to zeroIsentropic:irreversible. D) Adiabatic:heat transfer = 0Isentropic:heat transfer not equal to zero. Show Answer Correct Answer: B) Both:heat transfer = 0Isentropic:reversible. 24. In an isothermal process, the internal energy of the system A) Decreases. B) Increases. C) Does not change. D) None of the above. Show Answer Correct Answer: C) Does not change. 25. Thermometer is based on A) Newton's laws of motion. B) Second law of thermodynamics. C) First law of thermodynamics. D) Zeroth law of thermodynamics. Show Answer Correct Answer: D) Zeroth law of thermodynamics. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books