Identify the correct statements from the following. (I) For adiabatic process, U=W_ adiabatic (II) Work is path function. (III) Volume is an extensive property.

Step-by-step solution

From first law, U=q+W For adiabatic process, q=0 U=W Work is path function. Consider the p V curve shown below. To reach from initial state 1 to final state 2 , the area under the curve when path A is taken is more than the area under the curve when path B is taken. So, work done is more when path A is adopted. An extensive property is a property that depends on the amount of matter in a sample. Mass and volume are examples of extensive properties. Hence, statement I, II and III are correct.