This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 48 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 48 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following are ways in which energy can be transferred to or from a substance? A) Heat and internal energy. B) Work and internal energy. C) Heat and work. D) Heat and kinetic energy. Show Answer Correct Answer: C) Heat and work. 2. Chemical reactions are ..... processes A) Isotopic. B) Isobaric. C) Adiabiatic. D) Isothermal. Show Answer Correct Answer: B) Isobaric. 3. For free expansion of the gas which of the following is true? A) Q=W=0 and $\Delta$U=0. B) Q=0, W>0 and $\Delta$U =-W. C) W =0, Q>0, and $\Delta$U =Q. D) W>0, Q<0 and $\Delta$U=0. Show Answer Correct Answer: A) Q=W=0 and $\Delta$U=0. 4. Internal energy of the system is sum of its A) Kinetic and elastic energy. B) Kinetic and potential energy. C) Electric and mechanical energy. D) Light and heat energy. Show Answer Correct Answer: B) Kinetic and potential energy. 5. The form of energy transfer that takes place in a house heated by forced air is primarily ..... A) Convection. B) Conduction. C) Radiation. D) Induction. Show Answer Correct Answer: A) Convection. 6. Heat flow from a cool body to a hot body would not violate the 1st Law, energy would be still conserved A) True. B) False. C) Maybe. D) Sometimes. Show Answer Correct Answer: A) True. 7. If a system undergoes contraction of volume, then the work done by system is: A) Positive. B) Negative. C) Negligible. D) Zero. Show Answer Correct Answer: B) Negative. 8. Which of the following is NOT a path function? A) Internal energy. B) Heat energy. C) Work energy. D) None of the above. Show Answer Correct Answer: A) Internal energy. 9. Gamma cp/cv is equal to A) (1+n/2). B) (1+2/n). C) (1+1/n). D) (1+n/1). Show Answer Correct Answer: B) (1+2/n). 10. As the temperature of a fluid decreases- A) The number of inter-particle collisions and random movement of particles decrease. B) The number of inter-particle collisions and random movement of particles increase. C) The number of inter-particle collisions increase and random movement of particles decrease. D) The number of inter-particle collisions decrease and random movement of particles increase. Show Answer Correct Answer: A) The number of inter-particle collisions and random movement of particles decrease. 11. Which of the following is an example of the First Law of Thermodynamics in daily life? A) An ice cube melting at room temperature. B) Riding a bicycle and converting chemical energy into mechanical energy. C) Cooling atoms to extremely low temperatures. D) Using a thermometer to measure temperature. Show Answer Correct Answer: B) Riding a bicycle and converting chemical energy into mechanical energy. 12. Which of the following processes is an example of an endothermic reaction? A) Combustion of gasoline. B) Photosynthesis in plants. C) Freezing of water. D) Condensation of steam. Show Answer Correct Answer: B) Photosynthesis in plants. 13. In which of the following reactions/phase changes do you expect to have a decrease in entropy? A) Fe(s) $\rightarrow$Fe(l). B) H$_{2}$O$_{2}$(l) $\rightarrow$2H$_{2}$O(l) +O$_{2}$(g). C) 4Fe(s) +3O$_{2}$(g)$\rightarrow$2Fe$_{2}$O$_{3}$(s). D) HF(l) $\rightarrow$HF(g). Show Answer Correct Answer: C) 4Fe(s) +3O$_{2}$(g)$\rightarrow$2Fe$_{2}$O$_{3}$(s). 14. Which of the following systems where the work is not performed on or by the system nor is heat extracted or added to the system? A) Open system. B) Closed system. C) Isolated system. D) None of the above. Show Answer Correct Answer: C) Isolated system. 15. Specific heat of water is 4.18 J/g$^\circ$C. Specific heat of wood is 1.760 J/g$^\circ$C. Which material needs more heat energy to raise its temperature? A) Water. B) Wood. C) Both are same. D) None of the above. Show Answer Correct Answer: A) Water. 16. The 2nd Law of Thermodynamics tells us ..... A) Heat flows from cold to hot. B) Heat flows randomly, it's a 50/50 coin flip. C) Heat doesn't flow, temperature flows. D) Heat flows from hot to cold. Show Answer Correct Answer: D) Heat flows from hot to cold. 17. A sample of iron receives 50.J of heat energy that raises the temperature of the iron by 25.0$^\circ$C. If iron has a specific heat of 0.10 J/g$^\circ$C, what is the mass of the iron sample? (show your work) A) 25g. B) 30g. C) 20g. D) 50g. Show Answer Correct Answer: C) 20g. 18. The species which by definition has ZERO standard molar enthalpy of formation at 298 K is: A) H2O(g). B) CH4(g). C) Br2(g). D) Cl2(g). Show Answer Correct Answer: D) Cl2(g). 19. A material through which thermal energy moves slowly. A) Conductor. B) Gas. C) Thermal insulator. D) Internal combustion engine. E) Solar collector. Show Answer Correct Answer: C) Thermal insulator. 20. Process is method change the value of A) Pressure. B) Volume. C) Temperature. D) All. Show Answer Correct Answer: D) All. 21. Warm air rises and cold air sinks demonstrates what? A) Conduction. B) Convection. C) Radiation. D) Refrigeration. Show Answer Correct Answer: B) Convection. 22. Heat will not flow between two objects in thermal equilibrium. A) Zeroth law of thermodynamics. B) First law of thermodynamics. C) All the above. D) None of the above. Show Answer Correct Answer: A) Zeroth law of thermodynamics. 23. ..... is an intensive property A) Area. B) Entropy. C) Temperature. D) Volume. Show Answer Correct Answer: C) Temperature. 24. C (diamond) $\rightarrow$ C ( graphite), $\Delta$ A) Graphite has more energy than diamond. B) Graphite is more stable than diamond. C) Stability cannot be predicted. D) None of the above. Show Answer Correct Answer: B) Graphite is more stable than diamond. 25. The total energy of all the particles in a substance is called: A) Temperature. B) Thermal energy. C) Degrees. D) Mass. Show Answer Correct Answer: B) Thermal 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