This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 36 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 36 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Mixture of oil and water is an example of ..... system A) Homogeneous. B) Heterogeneous. C) All the above. D) None of the above. Show Answer Correct Answer: B) Heterogeneous. 2. Which principle states that the total entropy of an isolated system can never decrease over time? A) First Law of Thermodynamics. B) Second Law of Thermodynamics. C) Third Law of Thermodynamics. D) Zeroth Law of Thermodynamics. Show Answer Correct Answer: B) Second Law of Thermodynamics. 3. According to Bill Nye, which object has more heat energy? A) A lit match. B) A snowball. C) A 1, 000 pound block of ice. D) None of the above. Show Answer Correct Answer: C) A 1, 000 pound block of ice. 4. What are examples that show heat moving from cold to hot? A) Refrigerator. B) Freezer. C) It's impossible. D) The refrigerator and freezer. Show Answer Correct Answer: D) The refrigerator and freezer. 5. ..... ? ..... is the amount of energy (joules) required to raise the temperature of 1 mole of a substance by 1 K. Units are J/mol-K. A) Thermal energy. B) Molar heat capacity. C) A calorie. D) Specific heat. Show Answer Correct Answer: B) Molar heat capacity. 6. Flow work is also called as A) Work energy. B) Pressure energy. C) Flow energy. D) None of the above. Show Answer Correct Answer: B) Pressure energy. 7. ..... Is a quantity that represent total energy of the system. A) Enthalpy. B) Internal energy. C) Chemical energy. D) Bond energy. Show Answer Correct Answer: B) Internal energy. 8. Energy can neither be created nor destroyed A) Zeroth Law. B) Law of Conservation of Energy. C) Law of Conservation of Mass. D) Ideal Gas. Show Answer Correct Answer: B) Law of Conservation of Energy. 9. Dissolving NH4Cl in water to make a cold pack A) Exothermic reaction. B) Endothermic reaction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Endothermic reaction. 10. The total amount of energy in a system is ALWAYS ..... A) Increasing. B) Decreasing. C) Conserved. D) Changing. Show Answer Correct Answer: C) Conserved. 11. How many laws are there in thermodynamics A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 12. If one gram of the substance is considered, the heat capacity is known as A) Entropy. B) Specific heat capacity. C) Free energy. D) Work. Show Answer Correct Answer: B) Specific heat capacity. 13. Formula for solving specific heat problems A) Q = ms$\Delta$T. B) H = $\Delta$H x moles. C) H = $\Delta$H x grams. D) Products-reactants. Show Answer Correct Answer: A) Q = ms$\Delta$T. 14. The formation 1/2 A$_{2}$ + 2 B$_{2}$ + C $\rightarrow$ CAB$_{4}$ has an enthalpy of formation of-104 kJ and a change in entropy of-60.8 J/K at 30 $^\circ$C. What is the free energy and spontaneity of the reaction? A) -85.6 kJ, spontaneous. B) -18.3 kJ, not spontaneous. C) +18.3 kJ, spontaneous. D) +85.6 kJ, not spontaneous. Show Answer Correct Answer: A) -85.6 kJ, spontaneous. 15. Cp for monaotomic gas is A) 5/2. B) 7/2. C) 9/2. D) 1/2. Show Answer Correct Answer: A) 5/2. 16. The amount of energy required to change phase of a unit mass at constant temperature. A) Specific heat capacity. B) Heat capacity. C) Latent heat. D) Specific latent heat. Show Answer Correct Answer: D) Specific latent heat. 17. What is a set of particles or interacting components that is considered a distinct physical entity called? A) An engine. B) A system. C) An environment. D) An ideal gas. Show Answer Correct Answer: B) A system. 18. For an isovolumetric process, which of the following statements is correct? A) Work, heat, and internal energy all undergo changes. B) Work and heat balance each other, so that there is no change in internal energy. C) No energy is transferred as heat; internal energy change is due to work. D) No work is done; internal energy change is due to heat. Show Answer Correct Answer: D) No work is done; internal energy change is due to heat. 19. How much heat does an aluminum block absorb if 10.0 grams are heated from 25.0$^{o}$C to 50.0$^{o}$C? The specific heat of aluminum is 0.900J/g$^{o}$C. A) 450 J. B) -450 J. C) 225 J. D) -225 J. Show Answer Correct Answer: C) 225 J. 20. Which law states "The entropy of a closed system is always increasing" ? A) Zeroth Law. B) 1st Law. C) 2nd Law. D) 3rd law. Show Answer Correct Answer: C) 2nd Law. 21. Your enthalpy is +20 and your entropy is +5. Which temperature will give a spontaneous reaction? A) 0. B) 4. C) 8. D) None of the above. Show Answer Correct Answer: C) 8. 22. When a system is in thermodynamic equilibrium, which of the following is true? A) The system's temperature is constantly changing. B) The pressure in the system is not uniform. C) No net change occurs in the system over time. D) The system is experiencing a phase change. Show Answer Correct Answer: C) No net change occurs in the system over time. 23. Predict the signs of $\Delta$H, $\Delta$S and $\Delta$G for the reaction:$^{ }$ Mg(s) $\rightarrow$ Mg(g) A) $\Delta$ H =-, $\Delta$ S = + and $\Delta$ G =-(all temperature). B) $\Delta$ H = +, $\Delta$ S = + and $\Delta$ G =-(At all temperature). C) $\Delta$ H = +, $\Delta$ S = + and $\Delta$ G =-(At low temperature). D) $\Delta$ H = +, $\Delta$ S = + and $\Delta$ G =-(At high temperature). Show Answer Correct Answer: D) $\Delta$ H = +, $\Delta$ S = + and $\Delta$ G =-(At high temperature). 24. The enthalpy of formation of O$_{2}$ in the standard state is ..... A) +0.1 kJ mol$^{-1}$. B) 0. C) -0.1 kJ mol$^{-1}$. D) None of the above. Show Answer Correct Answer: B) 0. 25. N$_{2}$ + 3H$_{2}$ $\rightarrow$ 2NH$_{3}$$_{}$ How many moles of ammonium are produced when 3 moles of nitrogen react with hydrogen? A) 6 moles Ammonium. B) 1.5 moles ammonium. C) 9 moles ammonium. D) 9 moles hydrogen. Show Answer Correct Answer: A) 6 moles Ammonium. ← 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