Question

The pressure of a certain volume $V$ of gas is reduced to half of its initial pressure at constant temperature. Calculate its new volume.

• A. $2V$
• B. $\frac{V}{2}$
• C. $4V$
• D. $\frac{V}{4}$

Answer 1

The correct option is A $2V$

According to Boyle's law $P\alpha \frac{1}{V}$
Therefore ,when pressure is reduced to half, the volumes becomes double ($2V$) of the orginal volume;$V$.