REAL GAS :

• IT FOLLOWS THE BASIC GAS LAWS ONLY IN THE LOW PRESSURE AND HIGH TEMPARATURE.
• IT ALSO FOLLOWS THE VAN DER WAALS EQUATION.
• THE FORCE OF ATTRACTION AMONG THE MOLECULES ARE IMPORTANT IN EVERY PRESSURE AND THE SAME APPLIES TO TEMPARATURE AS WELL.
• THE VOLUME OCCUPIED IS SIGNIFICANT TO TOTAL VOLUME OCCUPIED BY THE GAS.

PERFECT GAS:

• THE VOLUME OF GIVEN MASS VARIES INVERSELY.
• MOLES AND TEMPARATURE REMAIN CONSTSANT.
• VOLUME 0F MASS OF GAS VARIES DIRECTLY AS THE ABSOLUTE TEMPARATURE.
• LACK OF FORCES OF ATTRACTION OR REPULSION.