Assertion (A): If the temperature of a sample of gas is increased from \( 25^{\circ} \mathrm{C} ...

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Assertion (A): If the temperature of a sample of gas is increased from \( 25^{\circ} \mathrm{C} \) to \( 50^{\circ} \mathrm{C} \), the volume of gas will increase by 100 per cent.
Reason (R): The volume of the given mass of a gas is directly proportional to absolute temperature.
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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