The diameter of a balloon filled by 8 moles He gas is 10 cm. If 7 moles He gas effuses out in the night, what will be the diameter of balloon in the next morning? Assume constant pressure and temperat

Question

The diameter of a balloon filled by 8 moles He gas is 10 cm. If 7 moles He gas effuses out in the night, what will be the diameter of balloon in the next morning? Assume constant pressure and temperature.

Prashant Kotian · Accepted Answer

Correct answer: A. Remaining He = 1 mol. V ∝ n → d³ ∝ n. (d₂/d₁)³ = 1/8 → d₂ = 10/2 = 5 cm.

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