Waec Model Questions Vol1 2019 Chemistry Question 50

Practice objective / multiple choice question 50 from the 2019 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Medium Difficulty
Question 50 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective

Two grams of ice at -10.0 °C are supplied with 100.0 J of heat. The specific heat capacity of ice is 2.1 J g⁻¹ K⁻¹, the latent heat of fusion of water is 334 J g⁻¹, and the specific heat capacity of liquid water is 4.18 J g⁻¹ K⁻¹. Determine the final state of the sample and its temperature after the heat is added.

Answer Options

A. All water at 0 °C; 2.0 g of ice melted (0 g ice remains)
B. Mixture of ice and water at -2 °C; 0.174 g of ice melted (1.826 g ice remains)
Correct Answer C. Mixture of ice and water at 0 °C; 0.174 g of ice melted (1.826 g ice remains)
D. All ice at 0 °C; 0 g melted (2.0 g ice remains)
Correct Answer
C
Correct Option:
Mixture of ice and water at 0 °C; 0.174 g of ice melted (1.826 g ice remains)

About This Question

This is Waec Model Questions Vol1 2019 Chemistry Question 50. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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