Answer to Question #338571 in Physical Chemistry for Puneet

Question

Helium gas is contained inside a piston cylinder assembly as shown in the figure. Initially the gas is

having pressure 1 bar and volume 0.01 m3

. Then the current is supplied, and the gas is heated such

that the final pressure is 1.2 bar and the final volume is 0.0145 m3

. 10 % of the electrical energy

supplied to the gas is lost as heat from the cylinder. Determine the followings. If necessary, make

assumption(s) with justification.

(a) How long the current is supplied if process is ideal?

(b) How long the current is supplied if process is real?