Questions in thermodynamics

Select	Question
	Work done by air when it expands from 50 litres to 150 litres at a constant pressure of 2 atmosphere is
	Work done by 0.1 mole of a gas at ${{27}^{o}}C$ to double its volume at constant pressure is (R = $2 cal- mol^{-1}/ ^oC$)
	Unit mass of a liquid with volume ${{V}_{1}}$ is completely changed into a gas of volume ${{V}_{2}}$ at a constant external pressure $P$ and temperature $T$. If the latent heat of evaporation for the given mass is L, then the increase in the internal energy of the system is
	A gas expands $0.25{{m}^{3}}$ at constant pressure ${{10}^{3}}N/{{m}^{2}}$, the work done is
	Two kg of water is converted into steam by boiling at atmospheric pressure. The volume changes from $2\times {{10}^{-3}}\,{{m}^{3}}$ to $3.34{{m}^{3}}.$ The work done by the system is about
	An ideal gas has volume ${{V}_{0}}$ at ${{27}^{o}}C.$It is heated at constant pressure so that its volume becomes $2{{V}_{0}}.$ The final temperature is
	If 300 ml of a gas at ${{27}^{o}}C$ is cooled to ${{7}^{o}}C$ at constant pressure, then its final volume will be
	Which of the following is correct in terms of increasing work done for the same initial and final state
	A sample of gas expands from volume ${{V}_{1}}$ to${{V}_{2}}$. The amount of work done by the gas is greatest when the expansion is
	Which of the following is a slow process