Question

A gas has an initial volume of 21.7 L at a pressure of 0.4 atm and a temperature of 252 K. The pressure of the gas increases to 2 atm as the temperature increases to 323 K. What is the final volume of the gas?

Answer 1

B

Step-by-step explanation:

Edgenuity

Answer 2

We assume that the gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. The number of moles is constant so the value of PV/T is equal to some constant. At another set of conditions, the constant is still the same. Calculations are as follows:

P1V1/T1 = P2V2/T2

V2 = P1V1T2/T1P2

V2 = 0.4(21.7)(323) / 252 (2)

V2 = 5.56 L