If 900 J/g of heat is exchanged at boiling point of water, then what is increase

If 900 Jg Of Heat Is Exchanged At Boiling Point Chemistry Question

If 900 J/g of heat is exchanged at boiling point of water, then what is increase in entropy

Options

(a) 900 J/mol
(b) 87.2 J/mol
(c) 43.4 J/mol
(d) Zero

Correct Answer:

43.4 J/mol

Explanation:

Heat exchanged at boiling point of water
= 900 J/g = 900 x 18 J/mol = 16200.0 J/mol.
ΔS(vap) = ΔH(vap) / T(b) = 16200/ 373 ( therefore T(b) = 273 + 100 = 373 K)
= 43.4 J/mol.

Related Questions:

  1. The wavelength of the radiation emitted when an electron drops from 3rd orbit
  2. In graphite C atom is in …state
  3. An aromatic compound among other things should have a bi-electron cloud containing
  4. When 10 mL of 0.1 M acetic acid (pKa = 5.0 ) is titrated against 10mL of 0.1 M
  5. Least voltage hydrogen halide 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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*