An ideal gas is contained in a cylinder with a volume of 500 mL at a temperature of 30.0 C and a pressure of 710 torr. The gas is then compressed to a volume of 25 mL, and the temperature is raised to 820 C. What is the new pressure of the gas

P2=51223 torr

Explanation:

As given in the question that gas follows the ideality nature of gas

Lets assume that P1 V1 and T1 are the initial parameter of gas and

P2 V2 and T2 are the final parameter of gas

given value:

P1=710torr

V1=500ml

T1=30C=303K

P2=?

V2=25ml

T2=820C=1093K

So,

After putting all the value we get,

P2=51223 torr

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.