Neco Model Questions Vol1 2021 Chemistry Question 3

Practice objective / multiple choice question 3 from the 2021 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Medium Difficulty
Question 3 NECO_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

The vapor pressure of a liquid is 0.40 atm at 300 K and 1.20 atm at 350 K. Assuming the Clausius-Clapeyron equation applies over this temperature range, calculate the enthalpy of vapourisation \(\Delta H_{\text{vap}}\) in kJ mol\(^{-1}\).

Answer Options

A. 12.5 kJ/mol
B. 31.8 kJ/mol
Correct Answer C. 19.2 kJ/mol
D. 25.0 kJ/mol
Correct Answer
C
Correct Option:
19.2 kJ/mol

About This Question

This is Neco Model Questions Vol1 2021 Chemistry Question 3. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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