The efficiency of a Carnot engine operating between two heat reservoirs at temperatures T1 and T2 (T1 > T2) is given by:

If x is the temperature of a system in Kelvin and y is the temperature of the system in °C, then the correct relation between them is

The ratio of the amount of heat absorbed by a substance to the corresponding rise in temperature is called its:

Two ends of rods of length L and radius R of the same material are kept at same temperature. Which of the following rods conducts the maximum heat?

Statement: A black body is an ideal absorber and emitter of radiation. Conclusion I: Radiation is not reflected from a black body. Conclusion II: A black body emits more energy at high temperature. C…

The amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius is called its: