This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 41 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What name is given to the process that takes place at constant pressure A) Isobaric. B) Isochoric. C) Isothermal. D) Adiabetic. Show Answer Correct Answer: A) Isobaric. 2. The unit for HEAT (thermal energy) A) Calories. B) Cal/gram degree Celsius. C) Degrees Celsius. D) None of the above. Show Answer Correct Answer: A) Calories. 3. As the kinetic energy of the molecules in a substance increases, the temperature of the substance ..... A) Increases. B) Decreases. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increases. 4. Heat flow into a system is ..... , and heat flow out of the system is ..... A) Positive, positive. B) Positive, Negative. C) Negative, positive. D) Negative, Negative. Show Answer Correct Answer: B) Positive, Negative. 5. Is this statement is true or falseIt is not possible to ascertain the absolute value of internal energy. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. In a thermodynamic process, the work done on a system is 50 J and the heat added to the system is 30 J. What is the change in internal energy of the system? A) 80 J. B) 20 J. C) -20 J. D) -80 J. Show Answer Correct Answer: C) -20 J. 7. The ideal thermodynamic cycle is called A) The Crovener cycle. B) The Carnot cycle. C) The Nitrogen cycle. D) The Somenoc cycle. Show Answer Correct Answer: B) The Carnot cycle. 8. The PV diagram for an adiabatic process looks similar to the PV diagram for ..... A) Isochoric process. B) Isothermal process. C) Isobaric process. D) It does not look similar to any of these charts. Show Answer Correct Answer: B) Isothermal process. 9. Which of the following process is used to do maximum work done on the ideal gas if the gas is compressed to half of its initial volume? A) Isothermal. B) Isochoric. C) Isobaric. D) Adiabatic. Show Answer Correct Answer: D) Adiabatic. 10. A metal baking pan heats up and bakes brownies. This is an example of? A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Conduction. 11. What is the process of heat transfer through direct contact called? A) Radiation. B) Convection. C) Conduction. D) Evaporation. Show Answer Correct Answer: C) Conduction. 12. Which branch of chemistry deals with heat flow? A) Chemical Kinetics. B) Thermodynamics. C) Nuclear Chemistry. D) Electrochemistry. Show Answer Correct Answer: B) Thermodynamics. 13. How does a Carnot engine operate and what is its efficiency? A) The efficiency of a Carnot engine is 1-(Tc/Th). B) The efficiency of a Carnot engine is Tc/Th. C) The efficiency of a Carnot engine is 1 + (Tc/Th). D) A Carnot engine operates without any heat loss. Show Answer Correct Answer: A) The efficiency of a Carnot engine is 1-(Tc/Th). 14. Heat will never flow from a cold object to a hot object on its own describes which law of thermodynamics? A) 1st Law of thermodynamics. B) 2nd Law of thermodynamics. C) 3rd Law of thermodynamics. D) 4th Law of thermodynamics. Show Answer Correct Answer: B) 2nd Law of thermodynamics. 15. According to the first law of thermodynamics, energy within a system: A) Increases with time. B) Decreases with time. C) Remains constant. D) Flows spontaneously. Show Answer Correct Answer: C) Remains constant. 16. The pressure of an ideal gas is increased by keeping the temperature constant. What is the effect on the kinetic energy of the molecules? A) KE increases. B) KE decreases. C) KE does not change. D) KE is zero. Show Answer Correct Answer: C) KE does not change. 17. Instrument used to measure the temperature is called A) Thermometer. B) Barometer. C) Manometer. D) Galvanometer. Show Answer Correct Answer: A) Thermometer. 18. A) A system in which neither mass nor energy is exchanged with the surrounding is called A) 1) Open system. B) 2.Closed system. C) 3.Isolated system. D) 4.None of these. Show Answer Correct Answer: C) 3.Isolated system. 19. According to the second law of thermodynamics, natural processes go in the direction that ..... the total entropy of the universe. A) Increases or Decreases. B) Increases. C) Decreases. D) Maintains. Show Answer Correct Answer: B) Increases. 20. Heat transferred by currents in a liquid or gas is: A) Conduction. B) Convention. C) Radiation. D) Icky. Show Answer Correct Answer: B) Convention. 21. Which principle states that objects of different temperatures will reach thermal equilibrium when allowed to come into contact? A) Boyle's Law. B) Ohm's Law. C) Charles's Law. D) Zeroth Law of Thermodynamics. Show Answer Correct Answer: D) Zeroth Law of Thermodynamics. 22. Cyclic integral of inexact differential is A) $\ne$. B) $=$. C) All the above. D) None of the above. Show Answer Correct Answer: A) $\ne$. 23. What is the final temperature of 15 g of nickel (C=0.44 J/g$^\circ$C) that absorbs 240 J of energy at 15$^\circ$C? A) 36$^\circ$C. B) -21$^\circ$C. C) 22$^\circ$C. D) 51$^\circ$C. Show Answer Correct Answer: D) 51$^\circ$C. 24. Which of the following describes the formation of air convection currents? A) Molecules in cooler air move gaster and farther apart than those in warm air. B) Coole rair moves in over the warm air and pushes it down. C) The sun warms the land, which heats the air above it. D) All of the above. Show Answer Correct Answer: C) The sun warms the land, which heats the air above it. 25. A 100ml of water is heated by the burning of a biscuit.If he $\Delta$T=20$^{0}$C and the change in mass of the biscuit, $\Delta$m =1.35g.Find the enthalpy of the biscuit in kJ/g. (Q=mc$\Delta$T) A) 6.19. B) 61.9. C) 6193. D) 8360. Show Answer Correct Answer: A) 6.19. ← 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