Question

A certain mass of gas occupied 850ml at pressure of 760 mm of Hg. On increasing the pressure it was found that the volume of the gas was 75% of its initial volume.Assuming constant temperature find the final pressure of the gas ?

Answer 1

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Answer 2

Given:

$P_1 = 760 mm$

$V_1=850ml$

$V_2=\frac{75}{100} \times850$ = $\frac{75\times85}{10}$

To find:

$P_2 = ?$

Formula to be used:

$P_1V_1=P_2V_2$

Calculation:

$P_1V_1=P_2V_2$

$760\times850= P_2\times\frac{75\times85}{10}$

$\frac{760\times10\times10}{75} = P_2$

$1013 = P_2$

Conclusion:

Assuming constant temperature, the final pressure of the gas was found to be 1013mm.

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