Neco 2020 Physics Question 13

Practice objective / multiple choice question 13 from the 2020 Neco Physics examination.

Neco 2020 Physics Objective / Multiple Choice Medium Difficulty

Question 13 NECO • 2020 • PHYSICS • objective

A calorimeter of heat capacity \(150\ \text{J·K}^{-1}\) contains \(200\) g of water at \(25^{\circ}\text{C}\). A \(50\) g piece of aluminum initially at \(100^{\circ}\text{C}\) is placed into the calorimeter. After the system reaches thermal equilibrium, the final temperature is \(30^{\circ}\text{C}\). Assuming no heat loss to the surroundings, determine the specific heat capacity of aluminum in \(\text{J·g}^{-1}\text{·K}^{-1}\) (to two decimal places).

A. 2.05 J·g⁻¹·K⁻¹

B. 1.75 J·g⁻¹·K⁻¹

Correct Answer C. 1.41 J·g⁻¹·K⁻¹

D. 0.89 J·g⁻¹·K⁻¹

Correct Answer

Correct Option:

1.41 J·g⁻¹·K⁻¹

This is Neco 2020 Physics Question 13. It is one of the objective questions from the 2020 Neco Physics examination.

Difficulty level: Medium .

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