Neco 2021 Physics Question 49
Practice objective / multiple choice question 49 from the 2021 Neco Physics examination.
In an insulated container, \(200\) g of water at \(80^{\circ}\)C is mixed with \(300\) g of water at \(20^{\circ}\)C. The mixture is then placed in a metal cylinder of mass \(150\) g and specific heat capacity \(0.385\) J·g\(^{-1}\)·°C\(^{-1}\) that is initially at \(25^{\circ}\)C. Assuming no heat loss to the surroundings, what is the percentage increase in the volume of the water due to thermal expansion? Use the linear expansion coefficient of water \(\alpha = 2.14\times10^{-4}\) °C\(^{-1}\). Give your answer to two decimal places.
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About This Question
This is Neco 2021 Physics Question 49. It is one of the objective questions from the 2021 Neco Physics examination.
Difficulty level: Medium .
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