Question

5.01 kJ are used to melt a sample of ice at 0°C. What is the mass of the sample?

general formula:

Answer 1

15.0 g

Step-by-step explanation:

Step 1: Given and required data

• Heat used to melt a sample of ice (Q): 5.01 kJ

• Latent heat of fusion of water (ΔH°fus): 334 kJ/kg

Step 2: Calculate the mass (m) of water

334 kJ are required to melt 1 kg of ice at 0°C (melting point of water). We can calculate the mass of ice melted by 5.01 kJ using the following expression.

Q = ΔH°fus × m

m = Q / ΔH°fus

m = 5.01 kJ / (334 kJ/kg)

m = 0.0150 kg = 15.0 g