A perfect gas contained in a cylinder is kept in vacuum. If the cylinder suddenly bursts, then the temperature of the gas

Question

A perfect gas contained in a cylinder is kept in vacuum. If the cylinder suddenly bursts, then the temperature of the gas (A) remains constant (B) becomes zero (C) increases (D) decreases

Tardigrade Admin · Accepted Answer

During free expansion of a perfect gas no work is done and also no heat is supplied from outside. Therefore from first law of thermodynamics, there is no change in the internal energy. Hence, temperature remains constant.

Q. A perfect gas contained in a cylinder is kept in vacuum. If the cylinder suddenly bursts, then the temperature of the gas

remains constant

becomes zero

increases

decreases

During free expansion of a perfect gas no work is done and also no heat is supplied from outside. Therefore from first law of thermodynamics, there is no change in the internal energy. Hence, temperature remains constant.