If the volume of a given mass of a gas at 0ºc is 29.5cm³ what will be the volume of the gas at 15ºc; the pressure remaining constant

A. 31.6
B. 62.2
C. 32.7
D. 31.1

Correct Answer:

Option D = 31.1

Explanation

Charles’ law is a special case of the ideal gas law in which the pressure of a gas is constant.

Charles’s law defines the direct relationship between temperature and volume.

GIVEN DATA: V1 = 29.5cm3, V2 = ? , T1 = 0ºc or 273k, T2 = 15ºc or 288k

V1T1 = V2T2
V2 = V1xT2T1 → 29.5×288/273
V2 = 31.1cm³