Internal energy is equal to the heat absorbed in case of a/an ______________ process?

Related Mcqs:

1. The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?

   A. 100,000 kW B. 160,000 kW C. 200,000 kW D. 320,000 kW...

2. Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of______________?

   A. Fusion B. Vaporisation C. Transition D. None of these...

3. Heat of transition is the heat evolved or absorbed, when a substance is converted from_________________?

   A. Vapor to liquid B. Vapor to solid C. Solid to liquid D. One allotropic form to another allotropic form...

4. For an isothermal process, the internal energy of a gas____________________?

   A. Increases B. Decreases C. Remains unchanged D. Data insufficient, can’t be predicted...

5. Internal energy change of a system over one complete cycle in a cyclic process is__________________?

   A. Zero B. +ve C. -ve D. Dependent on the path...

6. For a constant volume process _____________ by the system is used only to increase the internal energy?

   A. Heat absorbed B. Work done C. Both A. & B D. Neither A. nor B...

7. The internal energy of an ideal gas does not change in a reversible _____________ process?

   A. Isothermal B. Adiabatic C. Isobaric D. Isometric...

8. When a gas in a vessel expands, its internal energy decreases. The process involved is________________?

   A. Reversible B. Irreversible C. Isothermal D. Adiabatic...

9. “The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements.” This is the statement of___________________?

   A. Law of Petit and Dulong B. Kopp’s rule C. Nernst heat theorem D. Trouton’s rule...

10. In an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?

    A. +ve B. -ve C. 0 D. Either of the above three; depends on the nature of refrigerant...