The work done during the process is

Question

In a reversible isothermal expansion process, the fluid expands from 10 bar and 2 m³ to 2 bar and 10 m³, during the process the heat supplied is 100 kW. The work done during the process is  

(a) 33.3 kW                 (b) 100kW

(c) 80 kW                    (d) 20 kW