Question

write down Boyle’s law. At constant temperature a gas is at a pressure of 1080 mm Hg. If the volume is decreased by 40 % , find the new pressure of the gas.​

Answer 1

Answer:

Here is your answer !

Answer 2

Boyle's Law: P $\propto$ 1/V

It states that the pressure exerted by a gas (of a given mass, kept at a constant temperature) is inversely proportional to the volume occupied by it. In other words, the pressure and volume of a gas are inversely proportional to each other as long as the temperature and the quantity of gas are kept constant.

Numerical: 1800mm of Hg

If the starting volume is V, the new volume is 0.6V. So, according to the law,

$p_{1}v_{1} = p_{2}v_{2}$

The new pressure of the gas,

$p_{2} = \frac{p_{1}v_{1}}{v_{2}} = \frac{1080 \cdot V}{v_{2}} = 1800mm Hg$