Answer:
The new pressure is 129.9 kPa.
Explanation:
Step 1: Data given
The initial pressure is 120 kPa
The initial temperature = 30.0 °C = 273 + 30 = 303 K
The temperature increases to 55 °C = 328 K
Step 2: Calculate the new pressure
P1/T1 = P2/T2
⇒with P1 = the initial pressure P1 = 120 kPa
⇒with T1 = the initial temperature = 30.0 °C = 303 K
⇒with P2 = the new pressure = TO BE DETERMINED
⇒with T2 = the increased temperature = 55 °C = 328 K
120 kPa / 303 K = P2 / 328 K
P2 = (120 kPa / 303K) *328 K
P2 = 129.9 kPa
The new pressure is 129.9 kPa. Your answer was correct.
