Igcse Model Questions Vol1 2020 Physics Question 36
Practice objective / multiple choice question 36 from the 2020 Igcse Model Questions Vol1 Physics examination.
A 0.5 kg copper block (specific heat capacity \(c_{Cu}=385\ \text{J kg}^{-1}\text{K}^{-1}\)) is initially at \(200^{\circ}\text{C}\). It is placed into 2.0 kg of water (specific heat capacity \(c_{w}=4186\ \text{J kg}^{-1}\text{K}^{-1}\)) at \(20^{\circ}\text{C}\) inside an insulated container. The container loses heat to the surroundings at a constant rate of 10 J s\(^{-1}\). After 5 minutes the copper and the water reach a common temperature. What is the final equilibrium temperature (to one decimal place) in degrees Celsius?
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About This Question
This is Igcse Model Questions Vol1 2020 Physics Question 36. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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