Which of the following parameters does not characterize the thermodynamic state of matter ?

Which statement is incorrect ?

The equation of state for 5g of oxygen at a pressure p and temperature T, when occupying a volume V, will be:

1 g of water at atmospheric pressure has volume of 1 cm³ and when boiled it becomes 1681 cm³ of steam. The heat of vaporisation of water is 540 cal/g. Then the change in its internal energy in this process is :

When a system is taken from the initial state i to final state f along he path iaf, it is found that Q = 50 cal and W = 20 cal. If along the path ibf, Q = 36 cal, then W along the path ibf is:

                      

Initial pressure and volume of a gas are P and V respectively. First the gas is expanded isothermally to 4V and then its volume is made V by adiabatic process. Its final pressure (γ  = 1.5) is:

A thermodynamic system is taken through the cycle PQRSP process. The net work done by the system is :

                  

In an adiabatic system which is true  ?

In an adiabatic process, the state of a gas is changed from P₁, V₁, T₁ to P2, V₂, T₂. Which of the following relations is correct ?

A system goes from A to B via two processes I and II as shown in the figure. If ΔU₁ and ΔU₂are the changes in internal energies in the processes I and II respectively, then