In a working refrigerator, the value of COP is always__________________?

Related Mcqs:

Which of the following is Clausius-Clapeyron Equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor ?

A. d ln p/dt = Hvap/RT2 B. d ln p/dt = RT2/Hvap C. dp/dt = RT2/Hvap D. dp/dt = Hvap/RT2...

A refrigeration cycle is the same as a _____________ cycle?

A. Turbine B. Heat engine C. Reversed heat engine D. None of these...

Joule-Thomson co-efficient is defined as__________________?

A. μ = (∂P/∂T)H B. μ = (∂T/∂P)H C. μ = (∂E/∂T)H D. μ = (∂E/∂P)H...

In the reaction, C + O2 → CO2; ΔH = – 94 kcal. What is the heat content (enthalpy) of O2 ?

A. -94 kcal B. > -94 kcal C. < – 94 kcal D. Zero...

Entropy of a substance remains constant during a/an ____________ change?

A. Reversible isothermal B. Irreversible isothermal C. Reversible adiabatic D. None of these...