This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is true about thermodynamically favorable reactions? A) They need outside energy to be put in. B) They always increase entropy. C) They always have a negative $\Delta$H. D) $\Delta$G is positive. Show Answer Correct Answer: C) They always have a negative $\Delta$H. 2. A system is in thermodynamic equilibrium A) If temperature and pressure at all points are same. B) If temperature and pressure at all points are not same. C) If temperature at all points are same. D) If pressure at all points are same. Show Answer Correct Answer: A) If temperature and pressure at all points are same. 3. Which combination of $\Delta$H and $\Delta$S NEVER has a spontaneous reaction? A) +$\Delta$H and +$\Delta$S. B) +$\Delta$H and-$\Delta$S. C) -$\Delta$H and-$\Delta$S. D) -$\Delta$H and +$\Delta$S. Show Answer Correct Answer: B) +$\Delta$H and-$\Delta$S. 4. A gas is heated by supplying it with 250 kJ ofenergy; at the same time, it is compressedso that 500 kJ of work is done on the gas.Calculate the change in the internal energy ofthe gas. A) 250 kJ. B) 750 kJ. C) -250 kJ. D) 500 kJ. Show Answer Correct Answer: B) 750 kJ. 5. What do we call the relationship between thermal energy, heat and work? A) Closed System. B) Entropy. C) Conductors. D) Thermodynamics. Show Answer Correct Answer: D) Thermodynamics. 6. The type of system that can exchange energy which is usually in the form of heat with its surroundings. A) Isolated system. B) Open system. C) Closed system. D) None of the above. Show Answer Correct Answer: C) Closed system. 7. Which of the following is an example of a real-world application of the second law of thermodynamics? A) A refrigerator cooling food by removing heat from inside and releasing it outside. B) A car engine converting chemical energy into mechanical energy. C) A solar panel converting sunlight into electrical energy. D) A wind turbine converting wind energy into electrical energy. Show Answer Correct Answer: A) A refrigerator cooling food by removing heat from inside and releasing it outside. 8. Which of the following cannot determine the state of a thermodynamic system? A) Pressure and volume. B) Volume and temperature. C) Temperature and pressure. D) Any one of pressure, volume or temperature. Show Answer Correct Answer: D) Any one of pressure, volume or temperature. 9. If 2 objects have the same temp. as a 3rd object, then the 2 objects must have the same temp. A) Zeroth Law of Thermodynamics. B) First Law of Thermodynamics. C) Second Law of Thermodynamics. D) Third Law of Thermodynamics. Show Answer Correct Answer: A) Zeroth Law of Thermodynamics. 10. What name is given to the process that takes place at constant temperature A) Isobaric. B) Isochoric. C) Isothermal. D) Adiabetic. Show Answer Correct Answer: C) Isothermal. 11. ..... has mass and takes up space. Liquids and gases are made of particles of this. A) Space. B) Temperature. C) Systems. D) Matter. Show Answer Correct Answer: D) Matter. 12. Transfer of thermal energy by collisions between the particles that make up matter. A) Convection. B) Radiation. C) 1st law of thermodynamics. D) 2nd law of thermodynamic. E) Conduction. Show Answer Correct Answer: E) Conduction. 13. An ideal gas system undergoes an adiabatic process in which it expands and does 20 J of work on its environment. What is the change in the system's internal energy? A) -20 J. B) 0 J. C) 5 J. D) 20 J. Show Answer Correct Answer: A) -20 J. 14. The principle used in the determination of Solar constant is A) Joule Kelvin Effect. B) Peltier Effect. C) Seebeck effect. D) Maxwell effect. Show Answer Correct Answer: C) Seebeck effect. 15. How does a catalyst affect the reaction rate? A) By lowering the activation energy. B) By increasing the activation energy. C) By increasing the concentration of reactants. D) By decreasing the concentration of products. Show Answer Correct Answer: A) By lowering the activation energy. 16. What is the significance of the second law of thermodynamics in determining the efficiency of heat engines? A) It allows heat engines to operate at 100% efficiency. B) It sets a limit on the maximum efficiency of heat engines. C) It has no impact on the efficiency of heat engines. D) It allows heat engines to operate without any energy loss. Show Answer Correct Answer: B) It sets a limit on the maximum efficiency of heat engines. 17. 2nd law of thermodynamics A) Every time energy changes form, some of it is lost to the environment. B) Energy can't be created or destroyed. C) All energy generates heat. D) None of the above. Show Answer Correct Answer: A) Every time energy changes form, some of it is lost to the environment. 18. Intensive property of a system is one whose value A) Depends on the mass of the system, like volume. B) Does not depend on the mass of the system, like temperature, pressure, etc. C) Is not dependent on the path followed but on the state. D) Is dependent on the path followed and not on the state. Show Answer Correct Answer: B) Does not depend on the mass of the system, like temperature, pressure, etc. 19. During systole stage ventricles of heart contracts. A) Adiabatic. B) Isothermal. C) Isovolumetric. D) Isobaric. Show Answer Correct Answer: C) Isovolumetric. 20. What must occur for the natural flow of heat to be reversed? A) Work. B) Kinetic Energy. C) Temperature Conversion. D) Create energy. Show Answer Correct Answer: A) Work. 21. Water in stoppered bottle is an example for A) Homogeneous system. B) Isolated system. C) Closed system. D) Open system. Show Answer Correct Answer: C) Closed system. 22. True or False:Entropy increases as temperature increases A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. Work is high grade and heat is low grade energy A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. Temperature is ..... property A) Intensive property. B) Extensive property. C) All the above. D) None of the above. Show Answer Correct Answer: A) Intensive property. 25. As a system becomes more disordered, entropy A) Remains the same. B) Increases. C) Decreases. D) Cannot be determined. Show Answer Correct Answer: B) Increases. ← 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