Statement 1: A rigid sealed cylinder containing a gas at 300 K and 1.0 atm develops a pressure of 1.2 atm when heated to 360 K.
Statement 2: The pressure exerted by a gas arises from collisions of its molecules with the walls of the container.

Question

Statement 1: A rigid sealed cylinder containing a gas at 300 K and 1.0 atm develops a pressure of 1.2 atm when heated to 360 K.

Statement 2: The pressure exerted by a gas arises from collisions of its molecules with the walls of the container.

TestHub · Accepted Answer

At constant V and n, P ∝ T: P₂ = 1.0 × 360/300 = 1.2 atm — Statement I is correct. Statement II is also correct (kinetic origin of pressure), but it only states where pressure comes from; it does not by itself give the proportionality P ∝ T, so it is not the correct explanation of I. Ans: (b).

Chemistry - Ideal Gas Question with Solution | TestHub

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