Neco Model Questions Vol1 2018 Physics Question 1

Practice objective / multiple choice question 1 from the 2018 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2018 Physics Objective / Multiple Choice Medium Difficulty
Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2018 • PHYSICS • objective

A 0.5 kg copper block (specific heat capacity \(c_{Cu}=385\ \text{J kg}^{-1}\text{K}^{-1}\)) at \(200^{\circ}\text{C}\) is placed into an insulated container that holds water initially at \(20^{\circ}\text{C}\). After thermal equilibrium the temperature of the system is \(30^{\circ}\text{C}\). If the specific heat capacity of water is \(c_{w}=4186\ \text{J kg}^{-1}\text{K}^{-1}\), determine the mass of water in the container.

Answer Options

A. 0.88 kg
B. 0.68 kg
C. 0.98 kg
Correct Answer D. 0.78 kg
Correct Answer
D
Correct Option:
0.78 kg

About This Question

This is Neco Model Questions Vol1 2018 Physics Question 1. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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