200 cm^3 of a gas at 800mm pressure is allowed to expand till the pressure is 0.9 atm. keeping the
temperature constant. Calculate the volume of the gas.
Answers
Given info : 200cm³ of a gas at 800 mm pressure is allowed to expand till the pressure is 0.9 atm keeping temperature constant.
To find : the final volume of gas.
Solution : as keeping the temperature constant, process is isothermal.
From Boyle's law,
P₁V₁ = P₂V₂
Here, P₁ = 800 mm = 800/760 = 1.05263 atm ≈ 1.05 atm
V₁ = 200 cm³
V₂ = ?
P₂ = 0.9 atm
Now, 1.05 × 200 = 0.9 × V₂
⇒V₂ = 1.05 × 200/0.9 = 233.33 cm³
Therefore the final volume of gas is 233.33 cm³
Answer :-
Given info : 200cm³ of a gas at 800 mm pressure is allowed to expand till the pressure is 0.9 atm keeping temperature constant.
To find : the final volume of gas.
Solution : as keeping the temperature constant, process is isothermal.
From Boyle's law,
P₁V₁ = P₂V₂
Here, P₁ = 800 mm = 800/760 = 1.05263 atm ≈ 1.05 atm
V₁ = 200 cm³
V₂ = ?
P₂ = 0.9 atm
Now, 1.05 × 200 = 0.9 × V₂
⇒V₂ = 1.05 × 200/0.9 = 233.33 cm³
Therefore the final volume of gas is 233.33 cm³