# Which of the following statements are incorrect for the internal pressure of a van der Waals’ gas? a) It is independent of molar volume b) It is directly proportional to molar volume c) It is directly proportional to square of molar volume d) It is inversely proportional to square of molar volume

## Question ID - 102788 :- Which of the following statements are incorrect for the internal pressure of a van der Waals’ gas? a) It is independent of molar volume b) It is directly proportional to molar volume c) It is directly proportional to square of molar volume d) It is inversely proportional to square of molar volume

3537

 (a,b,c) From van der Waals’ equation Internal pressure is due to van der Waals’ force For two gases and with molecular weights and , respectively, it is observed that at a certain temperature , the mean velocity of is equal to the of . Thus, the mean velocity of can be made equal to the mean velocity of , if a) is at temperature and is at such that b) Temperature of is lowered to while is at such that c) Both and are raised to a higher temperature d) Heat energy supplied to  