Question

A thermally insulated vessel contains an ideal gas of molecular mass M and ratio of specific heats γ. It is moving with speed u and its suddenly brought to rest. Assuming no heat is lost to the surroundings, its temperature increases by

Answer 1

Explanation:

Kinetic energy of vessel = 1/2mv2 Increase in internal energy Δu = nCVΔT where n is the number of moles of the gas in vessel. As the vessel is stopped suddenly, its kinetic energy is used to increase the temperature of the gas