Assertion: The heat absorbed during the isothermal expansion of an ideal gas against vacuum is zero. Reason: The volume occupied by the molecules of an ideal gas is zero.A. Statement-1 is true, statement 2 is true, statement 2 is a correct explanation for statement.1B. statement-1 is true, statement 2 is true, statement 2 is not a correc explanation for statement 1C. statement 1 is ture, statement 2 is falseD. statement-1 is false, statement-2 is true

Assertion: The heat absorbed during the isothermal expansion of an ide

1.	Assertion: The heat absorbed during the isothermal expansion of an ideal gas against vacuum is zero. Reason: The volume occupied by the molecules of an ideal gas is zero.A. Statement-1 is true, statement 2 is true, statement 2 is a correct explanation for statement.1B. statement-1 is true, statement 2 is true, statement 2 is not a correc explanation for statement 1C. statement 1 is ture, statement 2 is falseD. statement-1 is false, statement-2 is true
Answer» Correct Answer - B By first law of thermodynamics `d q = dE + dW`. Under isothermal condition for ideal gas is zero. Also `(dE)_(T) = 0` as for ideal gas there is no change in internal energy at constant T due to no force of attraction between the molecular. `:. Dq = 0 + 0 = 0` hence, (B) is correct option

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