Question

EXAMPL
1. (a) An iron ball requires 5000 J heat energy to
raise its temperature by 10°C. Calculate the
heat capacity of the iron ball.
(b) If mass of ball is 1.1 kg, find the specific heat
capacity of iron.​

Answer 1

Answer:

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Answer 2

Answer:

• 500 J K⁻¹
• 455 J kg⁻¹ K⁻¹

Explanation:

Given

• Q = 5000 J
• Δt = 10°C = 10 K
• M = 1.1 Kg

To find

• Heat capacity of the iron ball.
• Specific heat capacity of iron.

Solution

→ Heat capacity C' = Q / Δt

• heat energy / rise in temperature
• 5000 J / 10 K
• 500 J K⁻¹

→ Specific heat capacity of iron C = C' / M

• heat capacity of ball / mass of ball
• 500 J K⁻¹ / 1.1 Kg
• 455 J kg⁻¹ K⁻¹