Question

What will happen to the pressure of a 10 litre sample of a gas at 10 atm, if it is heated from 250 to 300 k and the volume is kept constant?

• A. 12 atm
• B. 2 atm
• C. 20 atm
• D. 40 atm

Answer 1

The correct option is B 2 atm

According to Gay-Lussac’s Law
$\frac{P_1}{T_1}=\frac{P_2}{T_2}or\frac{10}{250}=\frac{P_2}{300}\Rightarrow P_2=\frac{300\times 10}{250}$
$\Rightarrow P_2=12atm$
Hence, the pressure will increase by 2 atm.