Question

A sample of gas as a volume of 425 mL at 25°C at and 760 tour what volume with this gas sample have at STP

Answer 1

Answer:

$\Rightarrow V_2 = 389mL$

Explanation:

To solve this question, we could use Charles' law since both the number of mole and pressure are constant

At STP pressure P = 760 tor and Temperature = 273K

V1 =425mL, T1 =298K and T2 =273K

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

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

$\Rightarrow V_2 =273\times\frac{425}{298}$

Therefore, $\Rightarrow V_2 = 389mL$