This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Enthalpy of a reaction is determined at A) 298 K and 1 atm pressure. B) 298 K and 2 atm pressure. C) 288 K and 1 atm pressure. D) 288 K and 2 atm pressure. Show Answer Correct Answer: A) 298 K and 1 atm pressure. 2. Which of the following processes is an example of an exothermic reaction? A) Combustion of gasoline. B) Melting of ice. C) Evaporation of water. D) Photosynthesis. Show Answer Correct Answer: A) Combustion of gasoline. 3. ..... thermometer is called as standard thermometer A) Liquid thermometer. B) Gas thermometer. C) Resistance thermometer. D) Radiation thermometer. Show Answer Correct Answer: B) Gas thermometer. 4. ML of 4.0$^\circ$C water is heated until its temperature is 37$^\circ$C. If the specific heat of water is 4.184 J/g$^\circ$C, calculate the amount of heat energy needed to cause this rise in temperature. A) -13, 807.2 J. B) 13, 807.2 J. C) 17, 154.4 J. D) -17, 154.4 J. Show Answer Correct Answer: B) 13, 807.2 J. 5. Which principle allows us to calculate the change in enthalpy of a reaction using Hess's Law? A) Conservation of mass. B) Conservation of energy. C) Conservation of momentum. D) Conservation of entropy. Show Answer Correct Answer: B) Conservation of energy. 6. Identify the incorrect statement among the following.-A:Enthalpy change for a reaction is the heat absorbed or released under constant pressure.-B:The enthalpy change of a reaction is independent of the path taken and depends only on the initial and final states.-C:Endothermic reactions are characterized by a negative enthalpy change. A) A. B) B. C) C. D) None of the above. Show Answer Correct Answer: C) C. 7. Efficiency of Carnot's Engine does not depends upon A) Temperature of source. B) Temperature of sink. C) Working substance. D) None of the above. Show Answer Correct Answer: C) Working substance. 8. In an irreversible process taking place at constant T and P and in which only pressure-volume work is being done, the change in Gibbs free energy (dG) and change in entropy (dS), satisfy the criteria A) (dS)$_{V, E}$ < 0, (dG)$_{T, P }$< 0. B) (dS)$_{V, E}$ > 0, (dG)$_{T, P}$ < 0. C) (dS)$_{V, E}$ = 0, (dG)$_{T, P}$ = 0. D) (dS)$_{V, E }$= 0, (dG)$_{T, P}$ > 0. Show Answer Correct Answer: B) (dS)$_{V, E}$ > 0, (dG)$_{T, P}$ < 0. 9. How much heat does an aluminum block absorb if 10.00 grams ae heated from 25.0$^{o}$C to 50.0$^{o}$C? the specific heat of aluminum is 0.900J/g$^{o}$C A) 450. B) -450. C) 225. D) -225. Show Answer Correct Answer: C) 225. 10. If the volume of a gas is reduced to half of its initial volume then the specific heat will be A) Reduced to half. B) Doubled. C) Remains constant. D) Increase four times. Show Answer Correct Answer: C) Remains constant. 11. In the formula of The First Law of Thermodynamics, the ''Q" represent: A) Change in internal energy. B) Energy transferred as heat. C) Work done on or by the system. D) None of the above. Show Answer Correct Answer: B) Energy transferred as heat. 12. Transfer of heat by means of electromagnetic waves A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: C) Radiation. 13. The product of the pressure and volume of a system has the same SI units as which one of the following choices? A) Force. B) Work. C) Acceleration. D) Momentum. E) Impulse. Show Answer Correct Answer: B) Work. 14. Absorbs energy(nonspontaneous) A) Metabolism. B) Endergonic reaction. C) Exergonic reaction. D) Photosynthesis. Show Answer Correct Answer: B) Endergonic reaction. 15. The 1st law of Thermodynamics A) Energy can not be created or destroyed. It just changes forms. B) Energy can only be created by the sun. C) Some energy is lost to the environment. D) None of the above. Show Answer Correct Answer: A) Energy can not be created or destroyed. It just changes forms. 16. A) Maximum work is obtainable in A) Reversible process. B) Irreversible process. C) Isothermal process. D) Adiabatic process. Show Answer Correct Answer: A) Reversible process. 17. A student calculates the heat of combustion of a biscuit from an experiment to be 28.5kJ /g. The packet suggest that the heat of combustion is 3020kJ/100g. What is the percentage efficiency experimental data A) 0.94%. B) 9.4. C) 94%. D) 16%. Show Answer Correct Answer: C) 94%. 18. Tisha is studying thermodynamics and comes across a concept:A body of infinite heat capacity, capable of supplying any amount of heat without undergoing any temperature change A) High temperature source. B) Low temperature sink. C) Low temperature source. D) High temperature sink. Show Answer Correct Answer: A) High temperature source. 19. What is the source temperature of the Carnot engine in K required to get 70% efficiency? Given sink temperature is 27 degree C. A) 1000 K. B) 90 K. C) 270 K. D) 727 K. Show Answer Correct Answer: A) 1000 K. 20. Entropy is a measure of: A) Order. B) Disorder. C) All the above. D) None of the above. Show Answer Correct Answer: B) Disorder. 21. Temperature of the Sun is measured by ..... A) Pyrometer. B) Mercury thermometer. C) Gas Thermometer. D) Resistance thermometer. Show Answer Correct Answer: A) Pyrometer. 22. What is the formula to convert Fahrenheit to Celsius? A) C = (F-32) / 1.8. B) F= (1.8xC) + 32. C) K= C + 273. D) C= K-273. Show Answer Correct Answer: A) C = (F-32) / 1.8. 23. Which example below is an example of convection? A) Standing on a hot metal bridge. B) The attic is warmer than the basement. C) The Sun heating the Earth. D) Touching hot sand with your feet. Show Answer Correct Answer: B) The attic is warmer than the basement. 24. How many laws of thermodynamics are there? A) A lot. B) 3. C) 4. D) 1. Show Answer Correct Answer: C) 4. 25. Measure of the average kinetic energy of all the particles that make up an object. A) Temperature. B) Thermal energy. C) Heat. D) Specific heat. E) Thermodynamics. Show Answer Correct Answer: A) Temperature. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 1Class 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