Which of the following is NOT a reversible process?
Which of the following is NOT a reversible process?
Melting of ice
Conduction of heat
Isothermal expansion of gas
Adiabatic expansion of gas
Solution
A temperature gradient is a physical quantity that describes in which direction and at what rate the temperature changes in a specific location. Temperature always flows from the hottest to coldest source, due to the fact that cold is nothing but the absence of heat energy.