# A gas has a volume of 4.5 L at STP. If the conditions are changed to SATP, what is the new volume of the gas?

We use Charles' Law , ${V}_{1} / {T}_{1} = {V}_{2} / {T}_{2}$. The volume should increase slightly.
And thus ${V}_{2} = \frac{{V}_{1} \times {T}_{2}}{T} _ 1$
$= \frac{4.5 \cdot L \times 298.15 \cdot \cancel{K}}{273.15 \cdot \cancel{K}}$ $=$ ??L