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A gas's molecules carry translational KE of 1.5 × 10^5 J per cubic metre. Its pressure is
A1.5 × 10^5 Pa
B2.25 × 10^5 Pa
C0.5 × 10^5 Pa
D1.0 × 10^5 Pa
Answer & Solution
Correct answer: D. 1.0 × 10^5 Pa
Kinetic theory gives P = (2/3)(E/V), so (2/3) × 1.5 × 10^5 = 1.0 × 10^5 Pa.
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