Question

200 ml of a gas are found to have a pressure of 750 mm. What will be its volume if the pressure is doubled

Answer 1

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Answer 2

The volume when pressure is doubled will be 100 mL

Explanation:

To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is inversely proportional to the volume of the gas at constant temperature.

The equation given by this law is:

$P_1V_1=P_2V_2$

where,

$P_1\text{ and }V_1$ are initial pressure and volume.

$P_2\text{ and }V_2$ are final pressure and volume.

We are given:

$P_1=750mmHg\\V_1=200mL\\P_2=(2\times 750)=1500mmHg\\V_2=?mL$

Putting values in above equation, we get:

$750mmHg\times 200mL=1500mmHg\times V_2\\\\V_2=\frac{750\times 200}{1500}=100mL$

Learn more about Boyle's law:

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