This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 6 Thermodynamics – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 6 Thermodynamics Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The scientist pours liquid nitrogen on the camera. What does the camera detect? A) Nothing, because cold things don't generate heat. B) It breaks the camera instantly. C) It detects cold energy, which has more energy than heat energy. D) It detects thermal energy, because even cold things have some heat energy. Show Answer Correct Answer: D) It detects thermal energy, because even cold things have some heat energy. 2. How does the zeroth law of thermodynamics define thermal equilibrium? A) Two systems in thermal equilibrium with a third system are in thermal equilibrium with each other. B) Two systems in thermal equilibrium with each other have the same temperature. C) Two systems not in thermal equilibrium with a third system are in thermal equilibrium with each other. D) Two systems in thermal equilibrium with each other have different temperatures. Show Answer Correct Answer: A) Two systems in thermal equilibrium with a third system are in thermal equilibrium with each other. 3. What is a nonspontaneous reaction? A) A reaction that occurs quickly. B) A reaction that requires energy input. C) A reaction that occurs naturally without external intervention. D) A reaction that produces a large amount of heat. Show Answer Correct Answer: B) A reaction that requires energy input. 4. What is the value of the absolute thermodynamic temperature scale? A) 3K. B) 0K. C) 1K. D) 4K. Show Answer Correct Answer: B) 0K. 5. What is the second law of thermodynamics? A) The total entropy of an isolated system always increases over time. B) The total energy of a closed system remains constant. C) Heat flows from cold to hot spontaneously. D) Energy cannot be created or destroyed. Show Answer Correct Answer: A) The total entropy of an isolated system always increases over time. 6. Kelvin scale starts from A) 173. B) 273. C) 183. D) 293. Show Answer Correct Answer: B) 273. 7. In a reversible adiabatic process, entropy A) Increases. B) Decreases. C) Remains unchanged. D) None of these. Show Answer Correct Answer: C) Remains unchanged. 8. Which of the following best describes the concept of thermal equilibrium? A) Two objects at different temperatures exchange heat until they reach the same temperature. B) Two objects at the same temperature exchange heat until one becomes hotter. C) Two objects exchange heat indefinitely without reaching the same temperature. D) Two objects do not exchange heat at all. Show Answer Correct Answer: A) Two objects at different temperatures exchange heat until they reach the same temperature. 9. The first law of thermodynamics is also known as ..... A) Law of conservation of energy. B) Law of conservation of work. C) Law of conservation of heat. D) Law of conservation of volume. Show Answer Correct Answer: A) Law of conservation of energy. 10. Select the most random system of the following: A) Sugar cubes in a box. B) Sugar cubes scattered on a table. C) Sugar dissolved in water. D) Finely powdered sugar. Show Answer Correct Answer: C) Sugar dissolved in water. 11. Step two in Carnot engine is A) Isothermal expansion. B) Isothermal compression. C) Adiabatic expansion. D) Adiabatic compression. Show Answer Correct Answer: C) Adiabatic expansion. 12. A change in state function is indicated by prefixing the symbol A) $\alpha$. B) $\delta$. C) $\Delta$. D) $\Lambda$. Show Answer Correct Answer: C) $\Delta$. 13. $\left(\frac{\partial T}{\partial V}\right)_{\mathrm{s}}$ A) $-\left(\frac{\partial\mathrm{P}}{\partial S}\right)_{\mathrm{V}}$. B) $\left(\frac{\partial\mathrm{P}}{\partial S}\right)_{\mathrm{V}}$. C) $\left(\frac{\partial V}{\partial S}\right)_{\mathrm{P}}$. D) $-\left(\frac{\partial V}{\partial S}\right)_{\mathrm{P}}$. Show Answer Correct Answer: A) $-\left(\frac{\partial\mathrm{P}}{\partial S}\right)_{\mathrm{V}}$. 14. Energy can be converted from one form to another with the interaction of heat, work and internal energy, but it cannot be created nor destroyed, under any circumstances. A) First Law of Thermodynamics. B) Second Law of Thermodynamics. C) Third Law of Thermodynamics. D) Zeroth Law of Thermodynamics. Show Answer Correct Answer: A) First Law of Thermodynamics. 15. A thermometer measures temperature which is best described as A) Heat movement of particles. B) Average kinetic energy of particles. C) Calorimetry experiment. D) Specific heat of a substance. Show Answer Correct Answer: B) Average kinetic energy of particles. 16. Which process involves the transfer of heat between objects by direct contact? A) Radiation. B) Convection. C) Conduction. D) Entropy. Show Answer Correct Answer: C) Conduction. 17. Heat spontaneously flowing from a cold body to a hot body violates the ..... A) Law of conservation of energy. B) Kinetic-molecular law. C) 1st law of thermodynamics. D) 2nd law of thermodynamics. Show Answer Correct Answer: D) 2nd law of thermodynamics. 18. How much heat is needed to form 82.14 g of NO$_{2}$? N$_{2}$+ 2O$_{2}$ $\rightarrow$ 2NO$_{2}$$\Delta$H = +67kJ A) 58.2 kJ. B) 29.1. C) 59.8. D) 119.6. Show Answer Correct Answer: C) 59.8. 19. Thermodynamics is not concerned about A) Energy changes involved in a chemical reaction. B) The extent to which a chemical reaction proceeds. C) The rate at which a reaction proceeds. D) The feasibility of a chemical reaction. Show Answer Correct Answer: C) The rate at which a reaction proceeds. 20. Identify the incorrect statement among the following.-A:Standard enthalpy of formation is the enthalpy change when one mole of a compound is formed from its elements in their standard states.-B:The standard enthalpy of formation for a pure element in its standard state is always zero.-C:Standard enthalpy of formation values are always positive since they involve bond formation. A) A. B) B. C) C. D) None of the above. Show Answer Correct Answer: C) C. 21. Quasi-static process A) Is infinitely slow process. B) Experiences thermodynamic equilibrium at every small point on its path. C) Reversible process. D) All of the above. Show Answer Correct Answer: D) All of the above. 22. For a reversible process A) $\Delta S=0$. B) $\Delta S>0$. C) $\Delta S<0$. D) None of the above. Show Answer Correct Answer: A) $\Delta S=0$. 23. Considering the relationship Tds=dU+pdV between the entropy (S), internal energy (U), pressure (p), temperature (T) and volume (V), which of the statement is correct. A) It is applicable only for a reversible process. B) For an irreversible process TdSdU+pdV. C) It is valid only for an ideal gas. D) It is equivalent to 1$^{st}$ law, for a reversible process. Show Answer Correct Answer: D) It is equivalent to 1$^{st}$ law, for a reversible process. 24. Which law concentrates on the conservation of energy? A) 1st. B) 2nd. C) 3rd. D) 4th. Show Answer Correct Answer: A) 1st. 25. A) A process in which volume remain constant is called A) Isochoric process. B) Isobaric process. C) Adiabatic process. D) Isothermal process. Show Answer Correct Answer: A) Isochoric process. ← 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