Neco Model Questions Vol1 2020 Chemistry Question 13
Practice objective / multiple choice question 13 from the 2020 Neco Model Questions Vol1 Chemistry examination.
A 2.00 g sample of ice at \(-10^{\circ}\text{C}\) is heated until it becomes steam at \(120^{\circ}\text{C}\). Specific heats: ice \(2.1\ \text{J g}^{-1}\text{K}^{-1}\), water \(4.18\ \text{J g}^{-1}\text{K}^{-1}\), steam \(2.0\ \text{J g}^{-1}\text{K}^{-1}\). Latent heats: fusion \(334\ \text{J g}^{-1}\), vaporisation \(2260\ \text{J g}^{-1}\). (a) Calculate the total heat required. (b) If a heater supplies \(500\ \text{J s}^{-1}\), how long will the process take?
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About This Question
This is Neco Model Questions Vol1 2020 Chemistry Question 13. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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