In this question, we will be using again the Ideal gas law formula, which is the following formula:
PV = nRT
We have:
P = ?
V = 5.00 L
n = 0.2987 moles
R = 0.082
T = 35.1°C, or 308 K
Now adding these values in the formula:
P * 5 = 0.2987 * 0.082 * 308
5P = 7.54
P = 1.51 atm, which in kPa is 153 kPa