Gce Model Questions Vol1 2018 Physics Question 12

Practice objective / multiple choice question 12 from the 2018 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2018 Physics Objective / Multiple Choice Medium Difficulty
Question 12 GCE_MODEL_QUESTIONS_VOL1 • 2018 • PHYSICS • objective

A 200 g piece of aluminium (specific heat \(c_{Al}=0.900\) kJ kg\(^{-1}\) K\(^{-1}\)) at \(150^{\circ}\)C is placed into 500 g of water (specific heat \(c_{w}=4.18\) kJ kg\(^{-1}\) K\(^{-1}\)) initially at \(20^{\circ}\)C in an insulated container. After the system reaches equilibrium its temperature is \(T_{1}\). The mixture is then transferred into a calorimeter whose initial temperature is \(20^{\circ}\)C and whose heat capacity \(C_{cal}\) (in kJ K\(^{-1}\)) is unknown. After the transfer the final temperature of the whole system is \(30^{\circ}\)C. Determine the heat capacity \(C_{cal}\) of the calorimeter (express your answer in kJ K\(^{-1}\) to two significant figures).

Answer Options

A. 0.050
Correct Answer B. 0.070
C. 0.120
D. 0.090
Correct Answer
B
Correct Option:
0.070

About This Question

This is Gce Model Questions Vol1 2018 Physics Question 12. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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