A 2 kg block of ice at 0°C is converted to water at 0°C. How much heat is absorb

Practice Questions

Q1
A 2 kg block of ice at 0°C is converted to water at 0°C. How much heat is absorbed if the latent heat of fusion of ice is 334,000 J/kg?
  1. 668,000 J
  2. 334,000 J
  3. 167,000 J
  4. 500,000 J

Questions & Step-by-Step Solutions

A 2 kg block of ice at 0°C is converted to water at 0°C. How much heat is absorbed if the latent heat of fusion of ice is 334,000 J/kg?
  • Step 1: Identify the mass of the ice block. In this case, it is 2 kg.
  • Step 2: Identify the latent heat of fusion of ice. It is given as 334,000 J/kg.
  • Step 3: Use the formula for heat absorbed, which is: Heat absorbed = mass * latent heat.
  • Step 4: Substitute the values into the formula: Heat absorbed = 2 kg * 334,000 J/kg.
  • Step 5: Calculate the result: 2 * 334,000 = 668,000 J.
  • Step 6: Conclude that the heat absorbed when the ice is converted to water is 668,000 J.
  • Latent Heat of Fusion – The amount of heat required to convert a unit mass of a solid into a liquid without a change in temperature.
  • Heat Transfer – The process of energy moving from one system to another, in this case, from ice to water.
  • Mass and Energy Relationship – Understanding how mass and specific latent heat relate to the total energy absorbed or released during phase changes.
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