ABC26PH0583 · Thermodynamics

Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Thermodynamics – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium

Among the following the system that would require the least amount of thermal energy to bring its temperature to 80°C.
(a)200 gm fo water at 40°
(b)100 gm of water at $20^{\circ} \mathrm{C}$
(c)150 gm of water at $50^{\circ} \mathrm{C}$
(d)300 gm of water at $30^{\circ} \mathrm{C}$.
Answer
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Nothing is invented here, so this question has no answer on record.

Explanation
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