Physics · 2016
JEE Main · 10 April 2016, Shift 1 · Q8
A Carnot freezer takes heat from water at 0°C inside it and rejects it to the room at a temperature of 27°C. The latent heat of ice is 336 × 10^3 J…
A Carnot freezer takes heat from water at $\displaystyle 0$°C inside it and rejects it to the room at a temperature of $\displaystyle 27$°C. The latent heat of ice is $\displaystyle 336 \times 10^3 \mathrm{~J} \mathrm{~kg}^{-1}$. If $\displaystyle 5$ kg of water at $\displaystyle 0$°C is converted into ice at $\displaystyle 0$°C by the freezer, then the energy consumed by the freezer is close to :
Official answer
(1)
$\displaystyle 1.67 \times 10^5 \mathrm{~J}$
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JEE Main 2016 Physics question, with the answer from NTA’s final answer key. Where our answers come from.