MCQEasyJEE Main 2025 · 7 April, Shift 1Internal Energy & Enthalpy

Chemistry Question from JEE Main 2025 · 7 April, Shift 1

Total enthalpy change for freezing of 1 mol1 \text{ mol} water at 10∘C10^\circ C to ice at −10∘C-10^\circ C is _____ (Given: ΔfusH=x kJ/mol\Delta_{fus}H = x \, kJ/mol, Cp[H2O(l)]=y J mol−1K−1C_p[H_2O(l)] = y \, J \text{ mol}^{-1} K^{-1}, and Cp[H2O(s)]=z J mol−1K−1C_p[H_2O(s)] = z \, J \text{ mol}^{-1} K^{-1}))

  • A

    −x−10y−10z-x - 10y - 10z

  • B

    −10(100x+y+z)-10(100x + y + z)

  • C

    10(100x+y+z)10(100x + y + z)

  • D

    x−10y−10zx - 10y - 10z

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