# At constant pressure, a sample of 1 liter of gas is heated from 27°C to 127°C. What is the final volume?

${V}_{1} / {T}_{1} = {V}_{2} / {T}_{2}$, $\text{pressure}$ and $\text{moles}$ constant, and the $\text{absolute temperature scale}$ is used.................
We solve for ${V}_{2} = {V}_{1} / {T}_{1} \times {T}_{2} = \frac{1 \cdot L}{300 \cdot \cancel{K}} \times 400 \cdot \cancel{K} = \frac{4}{3} \cdot L$