Question

At what temperature does a gas at 1.00 atm and 20 degree Celsius have a pressure of 4.00 atm.

Please help thanks.

Answer 1

P1 =4 atm

T1= 20°C

P2=1 atm

T2=?

According to Gay-Lussac's Law or Third Gas Law,

P1T2=P2T1

4×T2=1×20

T2= 20/4

T2= 5°C

Answer At 5°C temperature does a gas at 1.00 atm !