| ⇦ | 
| ⇨ |
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: - The physical adsorption of gases on the solid surface is due to
- Among the following pairs of ions, the lower oxidation state in aqueous solution
- Which property of colloidal solution is not dependent on the charge on colloidal
- The ion which is not tetrahedral in shape is
- Which has least gold number
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The physical adsorption of gases on the solid surface is due to
- Among the following pairs of ions, the lower oxidation state in aqueous solution
- Which property of colloidal solution is not dependent on the charge on colloidal
- The ion which is not tetrahedral in shape is
- Which has least gold number
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