The volume of a gas held at constant temperature varies indirectly as the pressure of the gas. if the volume of a gas is 1200 cubic centimeters when the pressure is 400 millimeters of mercury, what is the volume, v, when the pressure is 500 millimeters of mercury?

Volume of the gas at 500 mm Hg pressure is 960

Explanation:

Let's assume the gas behaves ideally.

According to combined gas law for an ideal gas-

Where and   are initial and final pressure of the gas respectively.   and   are initial and final volume of the gas respectively.   and   are initial and final temperature of the gas in kelvin respectively.

Here = , = 1200 , = 400 mm Hg, = 500 mm Hg

So,

Hence =960 " alt="cm^{3}" />=960 " />

Hence volume of the gas at 500 mm Hg pressure is 960