Which of the following processes is reversible?

Options

A. Transfer of heat by radiation
B. Electrical heating of a nichrome wire
C. Transfer of heat by conduction
D. isothermal compression

Answer

D

Explanation

(a) It is the process by which heat is transmitted from one place to another without heating the intervening medium. Hence, it is not a reversible process.
(b) Nichrome wire is made of alloys and has high resistance. When current is passed through it, heat is produced. so, here electrical energy is converted into heat energy. hence, it is not a reversible precess.
(c) it is the process by which heat is transmitted from one point to another through a substance in the direction of fall of temperature without the actual movement of the particles of the substance themselves. hence, it cannot be reversible.
(d) isothermal compression isreversible for example, carnot cycle, heat engine.
Thus, choice (d) is correct.