Neco Model Questions Vol1 2021 Physics Question 11
Practice objective / multiple choice question 11 from the 2021 Neco Model Questions Vol1 Physics examination.
A metal block of unknown mass \(m\) (in kg) has a specific heat capacity of \(0.385\ \text{kJ·kg}^{-1}\text{K}^{-1}\). The block is heated to \(150^{\circ}\text{C}\) and then placed into \(0.5\ \text{kg}\) of water at \(20^{\circ}\text{C}\) (specific heat capacity \(4.18\ \text{kJ·kg}^{-1}\text{K}^{-1}\)) in an insulated container. After thermal equilibrium the temperature of the system is \(30^{\circ}\text{C}\). Assuming no heat loss to the surroundings, determine the mass \(m\) of the metal block (to two decimal places).
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About This Question
This is Neco Model Questions Vol1 2021 Physics Question 11. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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