Question

A mass of gas under constant Pressure occupies a volume of 0.5 M3 At a temperature of 20ﾟC using the formula for Cubic expansion What will be the volume at a temperature Of 45ﾟC without a change in pressure

Answer 1

To answer this question, we must use the equation for the volumetric expansion of gases at constant pressure. This equation is given by:

$V=V_{0}(1 + \alpha(T_{2}-T_{1}))$

We know:

$V_{0}$ is the initial volume $= 0.5 m ^ 3$

ΔT is the temperature change = 45 ° -20 ° = 25 °

$\alpha$ is the coefficient of gas expansion and is equal to 1/273

Then the final volume of the gas is:

$V=0.5*(1+\frac{1}{273}*25)$

$V=0.546m^ 3$