| ⇦ | 
| ⇨ |
At 298 K the enthalpy of formation of liquid water is -285.9 kJ/mol and that of steam -242.8 kJ/mol. The enthalpy of vapourisation of water is
Options
(a) 43.1 kJ/mol
(b) -43.1 kJ/mol
(c) 242.8 kJ/mol
(d) -242.8 kJ/mol
Correct Answer:
43.1 kJ/mol
Explanation:
ΔH(vap) = -242.8 – (-285.9) = 43.1 kJ/mol.
Related Questions: - At 400K sodium phenoxide reacts with CO₂ to produce
- The compound that gives both iodoform and Fehling’s tests is
- Which has the maximum number of molecules among the following
- Which of the following statement is not applicable to chemisorption
- The most effective electrolyte for the coagulation of As₂S₃ sol is
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- At 400K sodium phenoxide reacts with CO₂ to produce
- The compound that gives both iodoform and Fehling’s tests is
- Which has the maximum number of molecules among the following
- Which of the following statement is not applicable to chemisorption
- The most effective electrolyte for the coagulation of As₂S₃ sol is
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply