Show adiabatic and isothermal processes on a single p-V diagram. Of the two graphs, which one is steeper?

In the cyclic process shown in P-V diagram, the magnitude of the work done is:

For adiabatic process, which is correct-

Which is true for adiabatic process —

The reversible expansion of an ideal gas under adiabatic and isothermal conditions is shown in the figure. Which of the following statement(s) is (are) correct ?

One mole of a van der Waals' gas obeying the equation (P + a/(V^2)) (V - b) = RT undergoes the quasi-static cyclic process which is shown in the P-V diagram. The net heat absorbed by the gas in this process is

Statement I : In an isothermal process the whole heat energy supplied to the body is converted into internal energy. Statement II : According to the first law of thermodynamics Delta Q = Delta U + p Delta V .

Which graphs are called isotherm?

During a reversible adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio (C_(P))/(C_(V)) for the gas is-

Show that in an adiabatic process entropy remains constant.