Question

*At 1 bar pressure a gas occupies 10 cc. At what pressure will it occupy 2 cc at constant temperature?*

1️⃣ 5 bar
2️⃣ 10 bar
3️⃣ 15 bar
4️⃣ 20 bar​

Answer 1

Given:

At 1 bar pressure a gas occupies 10 cc volume.

To find:

Pressure at which the gas will occupy 2 cc of volume.

Calculation:

At constant temperature , we can apply Boyle's Law such that [(P × V) = constant]

$\rm{ \therefore \: (P1)(V1) =( P2)(V2)}$

$\rm{ = > \: 1 \times 10 =( P2) \times (2)}$

$\rm{ = > \: 10 =( P2) \times (2)}$

$\rm{ = > \: P2 = \dfrac{10}{2} }$

$\rm{ = > \: P2 = 5 \: bar}$

So, final answer is 5 bar.

Other things to know:

• Boyle's Law can only be applied when the gas is consider to be ideal.

• It cannot be used in case of real gas.

• Boyle's Law states that at constant temperature, the Pressure of a gas is inversely proportional to the volume of the gas.

HOPE IT HELPS.