Statement I: The heat absorbed during the isothermal expansion of an ideal gas against vacuum is zer β Thermodynamics and Thermochemistry Chemistry Question
Question
Statement I: The heat absorbed during the isothermal expansion of an ideal gas against vacuum is zero. Statement II: The volume occupied by the molecules of an ideal gas is negligible.
Answer: B
π‘ Solution & Explanation
Statement I correct (ΞU = 0, w = 0 for free expansion, so q = 0). Statement II correct as kinetic theory assumption, but doesn't explain Statement I.
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