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ICAR JRF Fish Processing Technology 29 Jun 2024Shift 1
MCQ (Single Correct) +4 −1
The latent heat of fusion of ice under normal atmospheric pressure is
  • Latent Heat of Fusion of Ice:
  • The latent heat of fusion ($L_f$) of pure ice at standard atmospheric pressure ($1\text{ atm}$, $0^\circ\text{C}$) is:
$$L_f = 333.55\text{ kJ/kg} \approx 336\text{ kJ/kg} \quad (80\text{ kcal/kg})$$
  • This large latent heat capacity explains why flaked/crushed ice is an exceptionally effective cooling medium for maintaining harvested fresh fish at $0^\circ\text{C}$.
  • Correct Option: Option 1 (336 KJ/kg).
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