Waec Model Questions Vol1 2017 Chemistry Question 6

Practice objective / multiple choice question 6 from the 2017 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2017 Chemistry Objective / Multiple Choice Medium Difficulty
Question 6 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • objective

A 500 g block of ice at -10 °C is placed in an insulated container and heated with a heater that supplies 2.0 kJ per minute for 30 minutes. The specific heat capacities are 2.1 J g⁻¹ °C⁻¹ for ice and 4.18 J g⁻¹ °C⁻¹ for water, and the latent heat of fusion of ice is 334 J g⁻¹. Determine the final state of the system and the mass of ice that has melted.

Answer Options

A. All ice at -10 °C, with 0 g of ice melted
B. All water at 0 °C, with 500 g of ice melted
Correct Answer C. Mixture of ice and water at 0 °C, with 148.2 g of ice melted
D. Mixture of ice and water at 0 °C, with 200.0 g of ice melted
Correct Answer
C
Correct Option:
Mixture of ice and water at 0 °C, with 148.2 g of ice melted

About This Question

This is Waec Model Questions Vol1 2017 Chemistry Question 6. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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