Question

In a close system a gas with constant volume at 20C and pressure

1bar a heat is added to increase its temperature to 120C. Find the
new pressure
I

Answer 1

6bar

Step-by-step explanation:

According to pressure law;

P1/T1 = P2/T2

Given the following;

P1 = 1bar

T1 = 20oC

P2 = ?

T2 = 120oC

Substitute

1/20 = P2/120

20P2 = 120

P2 = 120/20

P2 = 6bar

Hence the new pressure will be 6bar