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

Difficulty level: Medium .

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