Neco 2019 Physics Question 30

Practice objective / multiple choice question 30 from the 2019 Neco Physics examination.

Neco 2019 Physics Objective / Multiple Choice Medium Difficulty
Question 30 NECO • 2019 • PHYSICS • objective

150\ \text{g}\ of water at \(80^\\circ\text{C}\) is mixed with 100\ \text{g}\ of ice at \(-10^\\circ\text{C}\). The specific heat capacities are \(c_{water}=4.18\ \text{J·g}^{-1}\text{·}^\\circ\text{C}^{-1}\) and \(c_{ice}=2.09\ \text{J·g}^{-1}\text{·}^\\circ\text{C}^{-1}\); 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. 18.3 °C, no ice remains
Correct Answer B. 14.0 °C, no ice remains
C. 5.8 °C, some ice remains
D. -2.0 °C, all ice remains
Correct Answer
B
Correct Option:
14.0 °C, no ice remains

About This Question

This is Neco 2019 Physics Question 30. It is one of the objective questions from the 2019 Neco Physics examination.

Difficulty level: Medium .

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