Question

"Volume cofficient of gas is1/273 K" explain the statement

Answer 1

When the pressure expansion coefficient of a gas = 1/273 K −1 , It means that the increase in pressure of the gas per unit pressure at 0° C when the temperature increases 1° C at constant volume = 1/273 of the original volume .

Answer 2

Volume coefficient is derived from ideal gas equation

Explanation:

• Volume coefficient of a gas is derived from the ideal gas equation.
• Ideal gas equation-PV=nRT;

where P-Pressure,V-Volume,n-Amount of substance,R-Ideal gas constant,T-Temperature.

• So,we can see that Volume is directly proportional to Temperature(Kelvin).

V∝ T

• Hence,for a increase in temperature from 0 degree celsius to 1 degree celsius ,there will be an increase in temperature from 273 to 274 Kelvin.
• Therefore the volume change will be from V to (274/273).This may be written as (1+(1/273))V.

• So, there is an increase of 1/273V and so it is known as Volume Coefficient.