NCERT Exercise 11.3 - Thermodynamics
Question: Conceptual questions on (a) whether heat always increases temperature, (b) whether two bodies at same temperature have same heat, (c) sign of work in expansion, (d) gas-cooling by rapid expansion.
Answer: (a) **No** (phase change); (b) **meaningless** � heat is not stored; (c) **positive**; (d) **adiabatic cooling**.
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