Question

a gas occupy 300 ml at 27 degree Celsius at 730 mm pressure. what would be in volume at STP

Answer 1

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Answer 2

Given:

$V_2$ = 300 L = 0.3mL

$P_1$ = 1 atm

$P_2$ = $\frac{730}{760} = 0.9 atm$

$T_1$ = 273K

$T_2$ = 300K

To find:

$V_1$ = ?

Formula to be used:

$\frac{P_2V_2}{T_2}=\frac{P_1V_1}{T_1}$

Calculation:

$\frac{P_2V_2}{T_2}=\frac{P_1V_1}{T_1}$

$\frac{0.9\times 0.3}{300}=\frac{1\times V_1}{273}$

$\frac{0.9\times 0.3\times 273}{300\times1}= V_1$

$\frac{73.71}{300} = V_1$

0.2622 = $V_1$

∴$V_1 = 0.2622 L$ or 262.2mL

Conclusion:

The volume in STP would be 262.2ml.

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