Question

A gas sample has pressure of $1$ atm at ${27}^{o}C$.
What is the new pressure if the gas is heated to a temperature of ${54}^{o}C$?

• A. $1.1$ atm
• B. $0.5$ atm
• C. $0.9$ atm
• D. $27$ atm

Answer 1

The correct option is A $1.1$ atm

From charles law,

$\frac{P_1}{T_1}=\frac{P_2}{T_1}$

$P_1=1$ atm $P_2=?$

$T_1=273+27=300K$ $T_2=327K$

Now, $\frac{1}{300}=\frac{P_2}{327}$

$P_2=1.1$ atm