Neco Model Questions Vol1 2017 Physics Question 13

Practice objective / multiple choice question 13 from the 2017 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2017 Physics Objective / Multiple Choice Medium Difficulty
Question 13 NECO_MODEL_QUESTIONS_VOL1 • 2017 • PHYSICS • objective

One hundred and fifty grams of water at \(80^{\circ}\text{C}\) is mixed with one hundred grams of ice at \(-10^{\circ}\text{C}\). The specific heat capacities are \(c_{\text{water}} = 4.18\ \text{J g}^{-1}\text{K}^{-1}\) and \(c_{\text{ice}} = 2.09\ \text{J g}^{-1}\text{K}^{-1}\). The latent heat of fusion of ice is \(L_f = 334\ \text{J g}^{-1}\). Assuming no heat loss to the surroundings, determine the final temperature of the mixture and state whether any ice remains.

Answer Options

A. Final temperature ≈ 20 °C; no ice remains
Correct Answer B. Final temperature ≈ 14 °C; no ice remains
C. Final temperature ≈ 14 °C; ice remains
D. Final temperature ≈ 8 °C; no ice remains
Correct Answer
B
Correct Option:
Final temperature ≈ 14 °C; no ice remains

About This Question

This is Neco Model Questions Vol1 2017 Physics Question 13. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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