(i) A horizontal cylinder is fitted with a smooth movable piston. The cylinder contains an ideal gas. The gas is heated slowly so that the piston gradually moves out. After moving out for some distance the piston encounters an ideal spring and compresses it while moving out. Draw P – V diagram for the entire process.

(ii) One mole of an ideal gas is expanded isothermally at temperature `T_(0)` to double its volume from `V_(0)` to `2V_(0)`. Draw a graph showing the variation of volume (V) of the gas versus the amount of heat (Q) added to it.

Answer

(i) `(##IJA_PHY_V02_C04_E01_009_A01##)`