Home
Class 11
CHEMISTRY
Assertion : Real gases show ideal behavi...

Assertion : Real gases show ideal behaviour when the volume occupied is large so that the volume of the molecules can be neglected in comparison to it.
Reason : The behaviour of the gas becomes more ideal when pressure is very low.

A

If both (A) and (R) are correct and (R) is the correct explanation of (A).

B

If both (A) and (R) are correct, but (R) is not the correct explanation of (A).

C

If (A) is correct, but (R) is incorrect.

D

If both (A) and (R) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
B
For 1 mole of real gas, `(P+(a)/(V^2))(V-b)= RT` when V is very large, the terms b and `(a)/(V^2)` are negligible and the van der Waals equation becomes ideal gas PV= RT hence, real gases behave like ideal gas.
Promotional Banner

Similar Questions

Explore conceptually related problems

Give reasons for the deviation of real gases from the ideal gas behaviour.

Real gases deviate from ideal behaviour . b) When do real gases deviate from ideal behaviour?

Assertion : The boiling point of chloroform-acetone solution is larger than expected from ideal behaviour. Reason : The forces of attraction between unlike molecules are stronger than those between like molecules in the solution. This results in lower vapour pressure as compared to an ideal solution which is responsible for the higher boiling point.

A 20 litre container at 400 K contains CO_(2) gas at a pressure of 0.4 atm and an excess of solid SrO and solid SrCO_(3) (neglect the volume of the solids). The volume of the container is now gradually decreased by moving the piston fitted in the container. The volume of the container, when the pressure of CO_(2) attains its maximum value is (Given that SrCO_(3)(s) iff SrO(s)+CO_(2)(g), K_(p)=1.6 atm at 400K)

The gases which obey Gas Laws at all temperatures and pressures are called ideal gases. Give reasons for the deviation of real gases from the ideal gas behaviour

Assertion: The pressure of real gas is less than the pressure of the ideal gas. Reason :The intermolecular forces of attraction in real gases are greater than these of ideal gas.