What is the latent heat of fusion if 2000 J of heat is required to melt 500 g of ice? (2022)
Practice Questions
1 question
Q1
What is the latent heat of fusion if 2000 J of heat is required to melt 500 g of ice? (2022)
2000 J/kg
4000 J/kg
1000 J/kg
3000 J/kg
Latent heat of fusion (L) = Q/m = 2000 J / 0.5 kg = 4000 J/kg.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the latent heat of fusion if 2000 J of heat is required to melt 500 g of ice? (2022)
Solution: Latent heat of fusion (L) = Q/m = 2000 J / 0.5 kg = 4000 J/kg.
Steps: 7
Step 1: Understand the problem. We need to find the latent heat of fusion, which is the amount of heat needed to melt a substance without changing its temperature.
Step 2: Identify the given values. We have 2000 J of heat (Q) and 500 g of ice (mass, m).
Step 3: Convert the mass from grams to kilograms because the standard unit for mass in this calculation is kilograms. 500 g = 0.5 kg.
Step 4: Use the formula for latent heat of fusion: L = Q / m.
Step 5: Substitute the values into the formula. L = 2000 J / 0.5 kg.
Step 6: Calculate the result. 2000 J divided by 0.5 kg equals 4000 J/kg.
Step 7: Conclude that the latent heat of fusion is 4000 J/kg.
