Question

A flask having a volume of $250.0$ ml and containing air is heated to $100$ degree C and sealed. Then the flask is cooled to $25$ degree C, immersed in water, and opened.
What volume of water will be drawn back into the flask, assuming the pressure remaining constant?

Answer 1

We know Charle's Law assuming constant pressure gives us,

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

Given,

$T_1=373K,T_2=298K$

So,$V_1=250mL$ and $V_2=?$

Now on substituting these in the equation,

$⟹\frac{250}{373}=\frac{V_2}{298}$

$⟹V_2=50.27c{m}^3$