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Hot metal piece at 850 K dropped into 1 kg water at 300 K, settles at 350 K: heat capacity of the metal

The same question, asked 2 times: 10 May 2024 S1, 20 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    10 May 2024 S1

    38
    A piece of metal at 850 K is dropped into 1 kg water at 300 K. If the equilibrium temperature of water is 350 K, then the heat capacity of the metal, expressed in J K−1\text{J K}^{-1}, is (1 cal=4.2 J1\ \text{cal} = 4.2\ \text{J})

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  2. Question 2

    20 Apr 2026 S2

    113
    A piece of metal of 850 K is dropped into 1 kg of water at 300 K. If equilibrium temperature of water is 350 K then the heat capacity of the metal expressed in JK\dfrac{J}{K} is (Sp. heat of water=1 calg ∘C)\left(\text{Sp. heat of water} = 1\ \dfrac{\mathrm{cal}}{\mathrm{g\,^\circ C}}\right)

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