Neco Model Questions Vol1 2025 Physics Question 21

Practice objective / multiple choice question 21 from the 2025 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2025 Physics Objective / Multiple Choice Medium Difficulty
Question 21 NECO_MODEL_QUESTIONS_VOL1 • 2025 • PHYSICS • objective

A metal container of mass \(0.5\ \text{kg}\) and specific heat capacity \(0.9\ \text{kJ\,kg}^{-1}\text{K}^{-1}\) contains \(2.0\ \text{kg}\) of water at \(20^{\circ}\text{C}\). The container is placed on a stove that supplies \(500\ \text{kJ}\) of heat, but \(15\%\) of the supplied heat is lost to the surroundings. Assuming the container and the water reach the same final temperature, what is the final temperature of the water (to the nearest \(0.1^{\circ}\text{C}\))?

Answer Options

Correct Answer A. 68.2 °C
B. 73.1 °C
C. 65.0 °C
D. 70.5 °C
Correct Answer
A
Correct Option:
68.2 °C

About This Question

This is Neco Model Questions Vol1 2025 Physics Question 21. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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