Two 0.50 kg copper blocks are placed in an insulated container

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

Two 0.50 kg copper blocks are placed in an insulated container. One block is initially at 450 K and the other at 300 K. The specific heat capacity of copper is 390 J kg⁻¹ K⁻¹. Approximately how much energy is transferred as heat from the hotter block to the colder block by the time thermal equilibrium is reached? (a) 2.9×104 J2.9\times10^{4}\,\text{J} (b) 1.5×104 J1.5\times10^{4}\,\text{J} (c) 7.5×103 J7.5\times10^{3}\,\text{J} (d) 3.9×104 J3.9\times10^{4}\,\text{J}

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