Question

How do you determine the volume if 1.5 atm of gas at 20° C in a 3.0 L vessel are heated to 30° C at a pressure of 2.5 atm?

Answer 1

?? The volume is presumably constant..........

Explanation:

The problem has not been properly specified. You could have specified a gas in a PISTON, whose volume would decrease with increased pressure, and increase with increased temperature.

For such a system, we would use the `"combined gas law:"`

`(P_1V_1)/T_1=(P_2V_2)/T_2`

Solving for `V_2=(P_1V_1)/T_1xxT_2/P_2`

`=(1.5*atmxx3.0*Lxx303*K)/(293*Kxx2.5*atm)~=1.9*L`