Question

Calculate the volume of a given mass of gas at 760mmhg when its volume was increased by 10dm3 st 710 mmHg of the gas

Answer 1

Let the volume of the gas be $V1$

So $V2$ $=V1+10dm^3$

$P1V1=P2V2$

$760×V1=710×(V1+10dm^3)$

$760V1=710(V1+10dm^3)$

$760V1=710V1+7100$

$760V1-710V1=7100$

$50V1=7100$

$\frac{50V1}{50}=\frac{7100}{50}=142$

$V1=142dm^3$