| ⇦ | 
| ⇨ |
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 resistance of 1N solution of acetic acid is 250 ohm, when measured in a cell
- In the softening of the water by passing it through cationic and anionic exchang
- The compound which on reaction with aqueous nitrous acid at low temperature
- Living in the atmosphere of CO is dangerous, because it
- In a closed insulated container a liquid is stirred with a paddle to increase
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The resistance of 1N solution of acetic acid is 250 ohm, when measured in a cell
- In the softening of the water by passing it through cationic and anionic exchang
- The compound which on reaction with aqueous nitrous acid at low temperature
- Living in the atmosphere of CO is dangerous, because it
- In a closed insulated container a liquid is stirred with a paddle to increase
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