NCERT Class XI Chemistry States of Matter Solutions

Question : 2

Total: 23

A vessel of 120 mL capacity conta ins a certain amount of gas of 35°C and 1.2 bar pressure. The gas is transferred to another vessel of volume 180 mL at 35°C. What would be its pressure?

Solution:

Since temperature and amount of gas remain constant, therefore, Boyle’s law is applicable.
P1V1 = P2V2
P1 = 1.2 bar, P2 = ? V1 = 120 mL, V2 = 180 mL
∴ 1.2 × 120 = P2 × 180 ⇒ P2 =

1.2×120

180

= 0.8 bar

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