Work done in the reversible adiabatic process is given by:

1. 2.303 RT log (V₂/V₁)                     

2. $\frac{\mathrm{nR}<mspace\; width="1em"></mspace>}{(\mathrm{\gamma }-1)}({\mathrm{T}}_2-{\mathrm{T}}_1)$

3. 2.303 RT log(V₁/V₂)                     

4. none of above

The work done by a mass less piston in causing an expansion $∆$V (at constant temperature), when the opposing pressure, P is variable, is given by:

1. W= $-\int \mathrm{P}∆\mathrm{V}$               

2. W=0

3. W= -P$∆$V                     

4. none of these

The maximum work done in expanding 16 g of oxygen at 300 K and occupying a volume of 5 dm³ isothermally until the volume becomes 25 dm³ is:

1. -2.01 x 10³ J                       

2. 2.81 x 10³ J

3. 2.01 x 10^-3 J                     

4. -2.01 x 10^-6 J

Which of the following statements correctly describes an adiabatic process?

1. Pressure remains constant throughout the process

2. Gas undergoes isothermal expansion

3. The system is perfectly insulated from heat exchange

4. The system exchanges heat with the surroundings

The internal energy change when a system goes from state A to B is 40 kJ/mol. If the system goes from A to B by a reversible path and returns to state A by an irreversible path. What would be the change in internal energy?

1. 40 kJ                                   

2. >40 kJ

3. <40 kJ                                 

4. Zero