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PhysicsJEE Main 28 Jan 2026, Shift 1·Q1·MCQ·Moderate

Thermal Properties of Matter · Calorimetry and change of state

10 kg of ice at −10∘-10^\circC is added to 100 kg of water to lower its temperature from 25∘25^\circC. Consider no heat exchange to surroundings. The decrement to the temperature of water is ∘^\circC.
(specific heat of ice =2100= 2100 J/kg.∘^\circC, specific heat of water =4200= 4200 J/kg.∘^\circC, latent heat of fusion of ice =3.36×105= 3.36\times10^{5} J/kg)
  1. (1)10
  2. (2)15
  3. (3)6.67
  4. (4)11.6
We corrected a printing error in the original paper

Source printed the unit as “J/Kg” (three times).

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