The difference between ΔH and ΔE at 300 K for the reaction

The Difference Between H And E At 300 K For Chemistry Question

The difference between ΔH and ΔE at 300 K for the reaction
C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(l)

Options

(a) 300 ˣ 8.31 J/mol
(b) -300 ˣ 8.314 J/mol
(c) 3 ˣ 300 ˣ 8.314 J/mol
(d) -3 ˣ 300 ˣ 8.314 J/mol

Correct Answer:

-3 ˣ 300 ˣ 8.314 J/mol

Explanation:

ΔH = ΔE + Δn(g)RT
or ΔH – ΔE = Δn(g)RT,
where Δn(g) = (3) – (5 + 1) = -3.
Thus, ΔH – ΔE = -3 * 8.31 *300 J/mol.

Related Questions:

  1. Which of the following forms cationic micelles above certain concentration
  2. In the compounds KMnO₄ and K₂Cr₂O₇, the highest oxidation state is of the element
  3. Which of the following possesses highest melting point
  4. Terfenadine is commonly used as a
  5. An ideal gas at constant temperature and pressure expands and its

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Your email address will not be published.


*