Question

Liquid ammonia is used in an ice factory for making
ice from water. how many grams of ammonia will be
evaporated if water at
20°C is to be converted to 2kg ice at 0'C?​

Answer 1

If water at 20 °C is to be converted into 2 kg ice at 0 °C, how many grams of ammonia are to be evaporated? (Given: The latent heat of vaporization of ammonia= 341 cal/g) Answer : 586.4 g.

Answer 2

Answer:

Answer

Heat released in converting 2kg water at 20°C to 2kg ice at 0°C

=(2000×20×1)+(2000×80)

Mass of ammonia evaporated = m gram

Heat used by ammonia = m×341

Heat loss = Heat gain

∴200000=m×341

m=586gram

Explanation:

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