Exams › NEET › Physics

Two containers A and B are partly filled with water and closed. The volume of A is twice that of B and it contains half the amount of water in B. If both are at the same temperature, the water vapour in the containers will have pressure in the ratio of

1. 1 : 2
2. 1 : 1
3. 2 : 1
4. 4 : 1

Correct answer: 1 : 1

Solution

The vapor pressure of water depends only on temperature and not on the volume of the container or the amount of water present, as long as some liquid water is present. Since both containers are at the same temperature, the vapor pressure will be the same in both, giving a ratio of 1:1.

Related NEET Physics questions

• The molar specific heats of an ideal gas at constant pressure and volume are denoted by Cp and Cv, respectively. If γ = Cp / Cv and R is the universal gas constant, then Cv is equal to
• If γ be the ratio of specific heats of a perfect gas, the number of degrees of freedom of a molecule of the gas is
• The number of translational degrees of freedom for a diatomic gas is
• What happens to the average velocity of gas molecules as temperature increases?
• The degree of freedom of a molecule of a triatomic gas is
• What is the formula for internal energy (U) of an ideal gas?

⚔️ Practice NEET Physics free + battle 1v1 →