Neco 2025 Chemistry Question 8

Practice objective / multiple choice question 8 from the 2025 Neco Chemistry examination.

Neco 2025 Chemistry Objective / Multiple Choice Medium Difficulty
Question 8 NECO • 2025 • CHEMISTRY • objective

A 2.00 g sample of a substance is heated from 25\,\(^\circ\)C to 150\,\(^\circ\)C. The substance melts at 80\,\(^\circ\)C with a latent heat of fusion of 60\,J\,g\( ^{-1} \), boils at 120\,\(^\circ\)C with a latent heat of vaporisation of 200\,J\,g\( ^{-1} \), and has specific heat capacities of 1.0\,J\,g\( ^{-1} \)K\( ^{-1} \) (solid), 0.8\,J\,g\( ^{-1} \)K\( ^{-1} \) (liquid) and 0.6\,J\,g\( ^{-1} \)K\( ^{-1} \) (gas). Calculate the total heat absorbed by the sample.

Answer Options

A. 330
B. 754
C. 694
Correct Answer D. 730
Correct Answer
D
Correct Option:
730

About This Question

This is Neco 2025 Chemistry Question 8. It is one of the objective questions from the 2025 Neco Chemistry examination.

Difficulty level: Medium .

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