Neco Model Questions Vol1 2022 Chemistry Question 36
Practice objective / multiple choice question 36 from the 2022 Neco Model Questions Vol1 Chemistry examination.
A 10 g sample of a substance has the following data: melting point \(150^{\circ}\text{C}\), boiling point \(300^{\circ}\text{C}\); specific heat capacities \(c_{\text{solid}}=0.5\ \text{J g}^{-1}\text{K}^{-1}\), \(c_{\text{liquid}}=0.8\ \text{J g}^{-1}\text{K}^{-1}\), \(c_{\text{vapour}}=1.0\ \text{J g}^{-1}\text{K}^{-1}\); latent heats \(L_{\text{fus}}=60\ \text{J g}^{-1}\) and \(L_{\text{vap}}=200\ \text{J g}^{-1}\). The sample is heated from \(25^{\circ}\text{C}\) with a total of \(5000\ \text{J}\) of heat. Determine the final physical state of the substance and its temperature after all the heat has been supplied.
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About This Question
This is Neco Model Questions Vol1 2022 Chemistry Question 36. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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