This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 17 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Heat transfer [blank] occurs from hot to cold. A) Always. B) Never. C) Sometimes. D) Rarely. Show Answer Correct Answer: A) Always. 2. The internal energy of an ideal gas depends upon: A) Pressure only. B) Volume only. C) Temperature only. D) Temperature and volume both. Show Answer Correct Answer: C) Temperature only. 3. ..... ? ..... is the amount of energy required to raise the temperature of 1 gram of any substance 1$^{o}$C. A) Specific heat. B) A calorie. C) Thermal energy. D) Conduction. Show Answer Correct Answer: A) Specific heat. 4. Which of the following is not a thermodynamical variable A) Temperature. B) Volume. C) Entropy. D) Hight. Show Answer Correct Answer: D) Hight. 5. Device that converts some thermal energy into mechanical energy. A) Thermal insulator. B) Heat engine. C) Enegine. D) Internal combustion engine. E) Solar collector. Show Answer Correct Answer: B) Heat engine. 6. The ..... Law of Thermodynamics says that heat always flows from an object with a higher temperature to an object of lower temperature naturally A) Zeroth. B) First. C) Second. D) Third. Show Answer Correct Answer: C) Second. 7. Work is ..... when work is done ON the system BY the surroundings A) Positive. B) Negative. C) Neutral. D) None of the above. Show Answer Correct Answer: A) Positive. 8. The more widely spread out energy is among available energy levels and particles, the more probable that state. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Which key term is most accurately described as 'the amount of energy required to heat 1g of a substance by a temperature of 1oC'? A) Specific heat. B) Heating capacity. C) Heating energy. D) Specific Heat Capacity. Show Answer Correct Answer: D) Specific Heat Capacity. 10. What is the third law of thermodynamics? A) A perfect crystal has infinite entropy at absolute zero. B) As temperature increases, entropy decreases. C) As temperature approaches absolute zero, the entropy of a perfect crystal approaches zero. D) Entropy remains constant at all temperatures. Show Answer Correct Answer: C) As temperature approaches absolute zero, the entropy of a perfect crystal approaches zero. 11. When two gases combine to form a new gas as seen below, entropy decreases due the smaller number of gas molecules in the product. Which law of thermodynamics? A) 1st law of thermodynamics. B) 2nd law of thermodynamics. C) 3rd law of thermodynamics. D) Zeroth Law. Show Answer Correct Answer: B) 2nd law of thermodynamics. 12. As 120 g of hot milk cools in a mug, it transfers 20, 000 J of heat to the environment. What is the temperature change of the milk? The specific heat of milk is 2.6 J/g$^\circ$C. (Q=mc$\Delta$T) A) 64 $^\circ$C. B) 1.56 $^\circ$C. C) 640 $^\circ$C. D) Cannot be determined. Show Answer Correct Answer: A) 64 $^\circ$C. 13. Absolute zero temperature is taken as A) -273$^\circ$C. B) 273$^\circ$C. C) 237$^\circ$C. D) -373$^\circ$C. Show Answer Correct Answer: A) -273$^\circ$C. 14. Heat transfer by convection occurs when ..... A) Electrons bump into other electrons. B) Large numbers of atoms move from place to place. C) Atoms give off heat in the form of electromagnetic waves. D) Electromagnetic waves travel from place to place through a vacuum. Show Answer Correct Answer: B) Large numbers of atoms move from place to place. 15. The property of a thermometer that allows it to indicate temperature is A) Thermal expansion. B) Heat capacity. C) Thermal equilibrium. D) Conduction. Show Answer Correct Answer: A) Thermal expansion. 16. A quasi-equilibrium process is a true representation of an actual process. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. Which of the following parameters dose not characterize the thermodynamic state of matter? A) Volume. B) Pressure. C) Temperature. D) Work. Show Answer Correct Answer: D) Work. 18. For which of these processes is the value of $\Delta$H expected to be positive? 1. The temperature increases when calcium chloride dissolves in water. 2. Steam condenses to liquid water 3. Water boils4. Dry ice sublimates A) 4 only. B) 1 only. C) 3 and 4 only. D) 2 and 3 only. Show Answer Correct Answer: C) 3 and 4 only. 19. Enthalpy of a reaction can be understood as: A) The overall energy content of a system. B) The energy necessary to disrupt bonds within reactant molecules. C) The heat flow accompanying the reaction under constant pressure conditions. D) The alteration in energy resulting from a shift in temperature. Show Answer Correct Answer: C) The heat flow accompanying the reaction under constant pressure conditions. 20. Which form of heat transfer does not require a medium? A) Conduction. B) Convection. C) Radiation. D) Advection. Show Answer Correct Answer: C) Radiation. 21. If heat flows into the system from the surrounding, heat is taken as ..... A) -q. B) +q. C) All the above. D) None of the above. Show Answer Correct Answer: B) +q. 22. Internal energy of a system is a A) Point function. B) Path function. C) All the above. D) None of the above. Show Answer Correct Answer: A) Point function. 23. Define entropy and its role in thermodynamics. A) Entropy is a measure of energy in a system. B) Entropy is the total energy of a system at equilibrium. C) Entropy is a measure of disorder in a system and indicates the direction of spontaneous processes in thermodynamics. D) Entropy is a constant value that does not change in thermodynamic processes. Show Answer Correct Answer: C) Entropy is a measure of disorder in a system and indicates the direction of spontaneous processes in thermodynamics. 24. Which of the following is an example of a heat conductor? A) Steel Pipe. B) Wood Logs. C) Styrofoam Cup. D) The flesh of your enemies. Show Answer Correct Answer: A) Steel Pipe. 25. Which among the following is the formula for Helmholtz free energy? A) U+TS. B) U+TV. C) U-TS. D) UTV. Show Answer Correct Answer: C) U-TS. ← 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