Question

the volume of given mass of gas 0 degree Celsius is 2dm(cube) calculate the new volume of gas at constant pressure if temperature increase by 10degree Celsius

Answer 1

Hey ya!

We know that volume is directly proportional to temperature.

V1/V2 = T1/T2

2d / V2 = 273 / 283

V2 = 283/273 × 2d

V2 = 1.0366 × 2d.

:)

Answer 2

Answer: $2.07dm^3$

Explanation:

Charles' Law: This law states that volume 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)

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where,

$V_1$ = initial volume of gas = $2dm^3$

$V_2$ = final volume of gas = ?

$T_1$ = initial temperature of gas = $0^oC=273+0=273K$

$T_2$ = final temperature of gas = $10^oC=273+10=283K$

Now put all the given values in the above equation, we get the final pressure of gas.

$\frac{2dm^3}{273K}=\frac{V_2}{283K}$

$V_2=2.07dm^3$

Thus new volume of gas at constant pressure is $2.07dm^3$