The volume occupied by a certain gas was found 7.6dm3 when the pressure was 8atm.If the pressure is increased by 20%.Find the new volume of tje gas

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Solution

According to Boyel's Law : At constant temperature, the product of pressure and volume of a fixed amount of a gas is constant.
Or,
P ₁ V ₁ = P₂ V₂...........(1)
Given that ,
P₁ = 8 atm
V₁ = 7.6 dm³
P₂ = 20 % of 8 atm + 8 atm
= 1.6 atm + 8 atm
= 9.6 atm
V₂ = ?
According to eq (1) ...V₂ = P ₁ V ₁ / P₂
= 8 atm x 7.6 dm³ / 9.6 atm
= 6.3 dm³

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