Neco Model Questions Vol1 2020 Chemistry Question 10

Practice objective / multiple choice question 10 from the 2020 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2020 Chemistry Objective / Multiple Choice Medium Difficulty
Question 10 NECO_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

A 100 g block of ice at \(-10^{\circ}\text{C}\) is placed in a well‑insulated container with 200 g of water at \(80^{\circ}\text{C}\). The specific heat capacities are \(c_{\text{ice}} = 2.1\ \text{J g}^{-1}\text{K}^{-1}\), \(c_{\text{water}} = 4.18\ \text{J g}^{-1}\text{K}^{-1}\), and the latent heat of fusion of ice is \(L_f = 334\ \text{J g}^{-1}\). Determine the final state of the system and the equilibrium temperature (to two significant figures).

Answer Options

A. Ice at -10 °C
B. Mixture of ice and water at 15 °C
C. Liquid water at 0 °C
Correct Answer D. Liquid water at 25 °C
Correct Answer
D
Correct Option:
Liquid water at 25 °C

About This Question

This is Neco Model Questions Vol1 2020 Chemistry Question 10. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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