This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How much thermal energy must be added to a 250-g aluminum pan to raise its temperature from 20$^{0}$C to 85$^{0}$C? The specific heat of aluminum is 897 J/(kg *K). A) 1.5 x 10$^{4}$ J. B) 1.0 x 10$^{6}$ J. C) 1.45 x 10$^{7}$ J. D) 2.3 x 10$^{4 }$J. Show Answer Correct Answer: A) 1.5 x 10$^{4}$ J. 2. A student is cooking bacon in a pan on a stove top. What is the main method of heat transfer between the pan and the bacon? A) Entropy. B) Radiation. C) Convection. D) Conduction. Show Answer Correct Answer: D) Conduction. 3. Indicate whether $\Delta$S is positive, negative or zero for the following reactions:A) 2H$_{2}$ (g) + O$_{2}$ (g) $\rightarrow$ 2H$_{2}$O (g) B) 2NO$_{2}$ (g) $\rightarrow$ N$_{2}$O$_{4}$ (g) C) CO$_{2}$ (g) $\rightarrow$ CO$_{2}$ (s) A) Negative, negative, negative. B) Positive, positive, positive. C) Negative, positive, positive. D) Positive, negative, positive. Show Answer Correct Answer: A) Negative, negative, negative. 4. Absolute zero is ..... A) 273.15 K. B) 273.15 F. C) -273.15 C. D) -273.15 K. Show Answer Correct Answer: C) -273.15 C. 5. Thermal energy transfer through touching is A) Radiation. B) Conduction. C) Convection. D) Solar. Show Answer Correct Answer: B) Conduction. 6. Knudsen number is related to A) Pure substance. B) Thermodynamic equilibrium. C) Continuum. D) Phase. Show Answer Correct Answer: C) Continuum. 7. Which way does heat flow? A) Hot to cold. B) Cold to hot. C) It doesn't. D) None of the above. Show Answer Correct Answer: A) Hot to cold. 8. Heat transfer take place according to ..... A) Kirchhoff's law. B) Zeroth law of thermodynamics. C) First law of thermodynamics. D) Second law of thermodynamics. Show Answer Correct Answer: D) Second law of thermodynamics. 9. Which of the following is a statement of the Second Law of Thermodynamics? A) Energy cannot be created or destroyed, only transformed. B) The entropy of an isolated system always increases over time. C) For every action, there is an equal and opposite reaction. D) The total energy of an isolated system remains constant. Show Answer Correct Answer: B) The entropy of an isolated system always increases over time. 10. The reverse of heat vaporization is ..... A) Condensation. B) Evaporation. C) Melting. D) Freezing. Show Answer Correct Answer: A) Condensation. 11. Complete the following statement:The first law of thermodynamics states that ..... A) The entropy of the universe is increasing. B) Entropy is a function of the state of a system. C) Heat is a form of energy. D) The change in the internal energy of a system is given by Q-W. E) Two systems in thermal equilibrium with a third system are in equilibrium with each other. Show Answer Correct Answer: D) The change in the internal energy of a system is given by Q-W. 12. Mean free path is inversely proportional to A) Density. B) Pressure. C) Square of the diameter of the molecule. D) All of the above. Show Answer Correct Answer: D) All of the above. 13. An open system is one in which A) Heat and work cross the boundary, but the mass does not. B) Mass crosses the boundary, but the heat and work do not. C) Heat, work and mass cross the boundary. D) None of heat, work and mass cross the boundary. Show Answer Correct Answer: C) Heat, work and mass cross the boundary. 14. Specific heat capacity for water is ..... A) 129 J/jkg * C. B) 4186 J/jkg * C. C) 138 J/jkg * C. D) 1487J/jkg * C. Show Answer Correct Answer: B) 4186 J/jkg * C. 15. What does entropy describe in a thermodynamic system? A) The transition of energy from one form to another. B) The amount of disorder in the system. C) The process of heat transfer by direct contact. D) The emission and absorption of electromagnetic radiation. Show Answer Correct Answer: B) The amount of disorder in the system. 16. In an isothermal process A) Delta U=0. B) Q=0. C) T=0. D) None of these. Show Answer Correct Answer: A) Delta U=0. 17. If a metal rod is heated at one end, how is the thermal energy transferred to the other end? A) Conduction. B) Convection. C) Radiation. D) Advection. Show Answer Correct Answer: A) Conduction. 18. Which of the following is a state function in thermodynamics? A) Enthalpy. B) Work. C) Heat. D) Power. Show Answer Correct Answer: A) Enthalpy. 19. A jacket is a good example of an ..... A) Insulator. B) Investigator. C) Conductor. D) Interrogator. Show Answer Correct Answer: A) Insulator. 20. Which statement is true regarding exothermic reactions? A) Temperature change is positive and enthalpy change is positive. B) Temperature change is positive and enthalpy change is negative. C) Temperature change is negative and enthalpy change is positive. D) Temperature change is negative and enthalpy change is negative. Show Answer Correct Answer: B) Temperature change is positive and enthalpy change is negative. 21. Sealed pneumatic piston is an example of ..... system. A) Open. B) Closed. C) Isolated. D) None of the above. Show Answer Correct Answer: B) Closed. 22. Entropy is A) The phases within a system. B) The amount of heat in a system. C) State of order/disorder of a system. D) The amount of energy in a system. Show Answer Correct Answer: C) State of order/disorder of a system. 23. ..... is the amount of energy that must be added to a material to raise one unit of mass by one temperature unit. A) Temperature. B) Specific Heat. C) Radiation. D) Hotness. Show Answer Correct Answer: B) Specific Heat. 24. Nikita is studying the efficiency of a heat pump and learns that the COP of a heat pump is equal to the COP of a refrigerator plus ..... A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: A) 1. 25. The first law of thermodynamics states that the change in the internal energy of a system is equal to the difference in energy transferred to or from the system as heat and A) Mass. B) Work done. C) Force. D) Pressure. Show Answer Correct Answer: B) Work done. Next →Related QuizzesClass 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 10Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books