Question

calculate the work done when 1 mole of ideal gas expand isothermlly and reversibily from 7atm to 1 atm at 298k ( pressure)​

Answer 1

The work done when 1 mole of ideal gas expands isothermally and reversibly from 7 atm to 1 atm at 298k is equal to -4821.13 J.

• The formula for the work done when an ideal gas expands isothermally and reversibly from a pressure P1 to a pressure P2 is -

                                            W=nRT×ln(P2/P1)

• For a reversible process work done is equal to (-∫P.dV).
• For an isothermal process P×V=constant.