Waec Model Questions Vol1 2019 Chemistry Question 11

Practice objective / multiple choice question 11 from the 2019 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Medium Difficulty
Question 11 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective

A 500 g sample of ice at -10 °C is heated with a supply of 500 kJ of energy. The specific heat capacity of ice is 2.1 kJ kg⁻¹ K⁻¹, the latent heat of fusion of ice is 334 kJ kg⁻¹, the specific heat capacity of liquid water is 4.18 kJ kg⁻¹ K⁻¹ and the latent heat of vapourisation of water is 2260 kJ kg⁻¹. Assuming the system is open to the atmosphere so that water may boil, calculate the mass of water that remains in the liquid state after the energy has been supplied.

Answer Options

A. 350 g
B. 400 g
C. 500 g
Correct Answer D. 450 g
Correct Answer
D
Correct Option:
450 g

About This Question

This is Waec Model Questions Vol1 2019 Chemistry Question 11. It is a objective / multiple choice question from the 2019 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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