Question

2. Calculate the specific latent heat of a substance if 8000 J of heat is required for melting 25 g of
substance.
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Answer 1

Answer:

320 kJ kg⁻¹

Explanation:

Specific latent heat of the substance = Q/m

Q= 8000 J

m = 25g = 0.025 kg

Specific latent heat = 8000/0.025 = 8000 X 40 J kg⁻¹ = 320000 J kg⁻¹ = 320 kJ kg⁻¹