Question

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a vessel of 120 ml capacity contain a certain amount of gas at 35 degree Celsius and 1.2 bar pressure the gas is transferred to another vessel of volume 180 ml at 35 degree celsius what would be its pressure​

Answer 1

Here , P1=1.2 bar, V1=120 ml , P2=?, V2=180 ml

temp of gas is at 35°c

e.g. temp is constant

we have apply Boyle's law

P1V1 = P2V2

Now,

1.2 × 120 = P2 × 180

=> 144 = P2 × 180

=> P2 × 180 = 144

=> P2 = 144/180 = 0.8

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Answer 2

p₁=1.2 bar

p₂= ?

V₁= 120 mL

V₂= 180 mL

According to Boyle's law p₁V₁=p₂V₂

p₂= p₁V₁/V₂= 1.2 bar× 120mL/ 180mL = p₂ = 0.8 bar