Question

When the pressure and number of particles of a gas are constant, which of the following is also constant? Explain answer please

Answer 1

the sum of the volume and temperature in kelvins.

Answer 2

Answer : The correct option is, the ratio of the volume and temperature in kelvins  

Explanation :

According to the Charles' Law, the volume of gas is directly proportional to the temperature of the gas at constant pressure and number of moles.

$V\propto T$     (At constant pressure and number of moles)

or,

$\frac{V}{T}=k$

where,

V = volume of gas

T = temperature of gas

k = constant

As per question, when the pressure and number of particles of a gas are constant then the ratio of the volume and temperature in kelvins.

Hence, the correct option is, the ratio of the volume and temperature in kelvins