Neco Model Questions Vol1 2017 Physics Question 19

Practice objective / multiple choice question 19 from the 2017 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2017 Physics Objective / Multiple Choice Medium Difficulty
Question 19 NECO_MODEL_QUESTIONS_VOL1 • 2017 • PHYSICS • objective

A metal block of mass \(2.0\;\text{kg}\) and specific heat capacity \(0.45\;\text{kJ·kg}^{-1}\text{K}^{-1}\) is initially at \(150^{\circ}\text{C}\). It is placed into an insulated container that holds \(1.5\;\text{kg}\) of water at \(20^{\circ}\text{C}\). The container itself has a mass of \(0.5\;\text{kg}\) and a specific heat capacity of \(0.90\;\text{kJ·kg}^{-1}\text{K}^{-1}\). Assuming no heat is lost to the surroundings, calculate the final equilibrium temperature of the system in degrees Celsius, correct to one decimal place.

Answer Options

A. 31.0
B. 28.7
C. 42.1
Correct Answer D. 35.4
Correct Answer
D
Correct Option:
35.4

About This Question

This is Neco Model Questions Vol1 2017 Physics Question 19. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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