Waec Model Questions Vol1 2017 Chemistry Question 19
Practice objective / multiple choice question 19 from the 2017 Waec Model Questions Vol1 Chemistry examination.
A 2.00 g sample of a substance with molar mass 100 g mol⁻¹ is heated from 25 °C to 150 °C. Its melting point is 30 °C (ΔH_fus = 6.0 kJ mol⁻¹) and its boiling point is 120 °C (ΔH_vap = 30 kJ mol⁻¹). The specific heat capacities are: solid 0.5 J g⁻¹ K⁻¹, liquid 0.8 J g⁻¹ K⁻¹, gas 1.0 J g⁻¹ K⁻¹. Calculate the total heat absorbed for the entire heating process.
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About This Question
This is Waec Model Questions Vol1 2017 Chemistry Question 19. It is a objective / multiple choice question from the 2017 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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