It is desired to increase of the volume of a gas by 20% without changing the pressure. To what temprature the gas must be heated if the initial temperature of the gas is `27^(@)C`.

Explanation

To solve the problem of increasing the volume of a gas by 20% without changing the pressure, we can follow these steps:

### Step 1: Define the initial conditions
Let the initial volume of the gas be \( V \) cm³. The initial temperature is given as \( 27^\circ C \).

### Step 2: Calculate the final volume
We want to increase the volume by 20%. Therefore, the increase in volume is:
\[
...