Igcse Model Questions Vol1 2024 Physics Question 30
Practice objective / multiple choice question 30 from the 2024 Igcse Model Questions Vol1 Physics examination.
150 g of water at 80°C is mixed with 250 g of water at 20°C in an insulated container. The mixture then cools to 30°C while losing heat to the surroundings at a rate given by \(\dot Q = 0.02\,(T-20)\) J s⁻¹, where \(T\) is the temperature of the mixture in °C. If the cooling takes 10 minutes, calculate the total heat lost to the surroundings (in joules).
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This is Igcse Model Questions Vol1 2024 Physics Question 30. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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