Gce Model Questions Vol1 2022 Physics Question 39

Practice objective / multiple choice question 39 from the 2022 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2022 Physics Objective / Multiple Choice Medium Difficulty
Question 39 GCE_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • objective

A 1.00 kg copper block (specific heat \(c=385\ \text{J·kg}^{-1}\text{K}^{-1}\)) initially at \(20^{\circ}\text{C}\) is placed in thermal contact with 100 g of ice at \(0^{\circ}\text{C}\). The system is perfectly insulated from the surroundings. Assuming all heat lost by the copper goes into melting the ice (latent heat of fusion \(L_f=334\ \text{kJ·kg}^{-1}\)) and then warming the resulting water, determine the final equilibrium temperature and state whether any ice remains.

Answer Options

A. -2°C, 0.077 kg ice remains
B. 0°C, 0.050 kg ice remains
Correct Answer C. 0°C, 0.077 kg ice remains
D. 5°C, 0 kg ice remains
Correct Answer
C
Correct Option:
0°C, 0.077 kg ice remains

About This Question

This is Gce Model Questions Vol1 2022 Physics Question 39. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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