Gce Model Questions Vol1 2017 Physics Question 2
Practice objective / multiple choice question 2 from the 2017 Gce Model Questions Vol1 Physics examination.
A 200 g iron block at \(150^{\circ}\text{C}\) is placed into 500 g of water at \(20^{\circ}\text{C}\) in an insulated container. After equilibrium the water temperature is measured to be \(30^{\circ}\text{C}\). Assuming no heat is lost to the surroundings, the heat lost by the iron should equal the heat gained by the water. Using the specific heats \(c_{\text{Fe}} = 0.45\ \text{J g}^{-1}\!^{\circ}\text{C}^{-1}\) and \(c_{\text{H}_2\text{O}} = 4.18\ \text{J g}^{-1}\!^{\circ}\text{C}^{-1}\), calculate the amount of heat (in joules) that must have been supplied to the system from the surroundings.
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About This Question
This is Gce Model Questions Vol1 2017 Physics Question 2. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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