The gas will occupy 0.875 L at 10mmHg
For an Ideal Gas , The product of Pressure and Volume is equal to the product of number of moles ,Universal Gas Constant and Temperature.
PV = nRT
When Temperature is kept constant
According to Boyle's Law , the pressure will be inversely proportional to Volume.
P₁V₁ = P₂V₂
It is given in the question that
A gas occupies 3.5 L at 2.5 mm Hg pressure what is the volume at 10 mm Hg at the same temperature
P₁ = 2.5 mmHg
V₁ = 3.5L
P₂ = 10 mmHg
V₂ = ?
2.5 * 3.5 = 10 * V₂
V₂ = 0.875L
Therefore the gas will occupy 0.875 L at 10mmHg.
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