Physics - GCSE AQA - Combined Science - Higher: Find the final temperature of 5 kg of water, at an initial temperature of 5 °C, after 50 kJ of energy has been transferred to it.

Question

Find the final temperature of 5 kg of water, at an initial temperature of 5 °C, after 50 kJ of energy has been transferred to it.

yxng.edxn · Accepted Answer

∆θ = ∆E ÷ Mass × C

⁵⁰⁰⁰⁰⁄₅ ₓ ₄₂₀₀ = 2.38..

2.38 + 5 = 7.38 °C

The reason to why the answer is 7.38 °C instead of 2.38 °C is because if the initial (starting) temperature was 5 °C, then the ending temperature will be 5 °C + ∆θ.

Physics - GCSE AQA - Combined Science - Higher

Find the final temperature of 5 kg of water, at an initial temperature of 5 °C, after 50 kJ of energy has been transferred to it.

∆θ = ∆E ÷ Mass × C ⁵⁰⁰⁰⁰⁄₅ ₓ ₄₂₀₀ = 2.38.. 2.38 + 5 = 7.38 °C The reason to why the answer is 7.38 °C instead of 2.38 °C is because if the initial (starting) temperature was 5 °C, then the ending temperature will be 5 °C + ∆θ.

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