Neco Model Questions Vol1 2021 Physics Question 20

Practice objective / multiple choice question 20 from the 2021 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2021 Physics Objective / Multiple Choice Medium Difficulty
Question 20 NECO_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • objective

\(150\ \text{g}\) of water at \(80^{\circ}\text{C}\) is mixed with a \(200\ \text{g}\) aluminum block at \(25^{\circ}\text{C}\). The specific heat capacities are \(c_{\text{water}} = 4.18\ \text{J g}^{-1}\text{K}^{-1}\) and \(c_{\text{Al}} = 0.900\ \text{J g}^{-1}\text{K}^{-1}\). Assuming no heat loss to the surroundings, determine the final equilibrium temperature of the mixture (in \(^\circ\text{C}\)).

Answer Options

Correct Answer A. 68 °C
B. 60 °C
C. 70 °C
D. 65 °C
Correct Answer
A
Correct Option:
68 °C

About This Question

This is Neco Model Questions Vol1 2021 Physics Question 20. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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