Neco Model Questions Vol1 2019 Chemistry Question 16
Practice objective / multiple choice question 16 from the 2019 Neco Model Questions Vol1 Chemistry examination.
A sample of water of unknown mass is heated from 25 °C to 120 °C at 1 atm pressure. The water is first heated as liquid to its boiling point, then completely vaporised, and the resulting steam is further heated to 120 °C. The specific heat capacity of liquid water is \(4.18\ \text{J g}^{-1}\text{K}^{-1}\), the latent heat of vaporisation is \(2260\ \text{J g}^{-1}\), and the specific heat capacity of steam is \(2.01\ \text{J g}^{-1}\text{K}^{-1}\). If the total heat supplied is \(1.20\times10^{6}\ \text{J}\), determine the mass of water originally present (in grams).
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About This Question
This is Neco Model Questions Vol1 2019 Chemistry Question 16. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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