Consider each of the following reactions and decide whether the standard entropy change for the reaction...

60.1K

Verified Solution

Question

Chemistry

Consider each of the following reactions and decide whether thestandard entropy change for the reaction will be large &positive; or small; or large & negative. 1. large&negative2. large&positive 3.small
a) H₂(g) + Cl₂(g) = 2 HCl(g)
b) 2 Na(l) + H₂(g) = 2 NaH(s)
c) 2 H₂O(l) = 2 H₂(g) +O₂(g)
d) C(s) + H₂O(g) = CO(g) + H₂(g)
e) Cu(s) + 2 H₂SO₄(aq) =CuSO₄(aq) + 2 H₂O(l) + SO₂(g)
f) BaSO₄(s) + 2 H₂O(g) =BaSO₄.2H₂O(s)
2. Identify the true statement(s) regarding the entropy ofchemical substances.
All pure substances have a positive entropy at roomtemperature.
The dissolution of an ionic salt in water usually leads to anincrease in entropy of the system (salt + water).
S^o(one mole O₃(g)) > S^o(onemole O₂(g)) at 25^oC.
The entropy of ice at 0^oC is lower than that of waterat 0^oC.
When a metallic crystal is heated, its entropy increases due toincreasing atomic vibrations.

Answer & Explanation Solved by verified expert

4.3 Ratings (589 Votes)

The sign of S will be positive if there is an increase in temperature an increase in the volume in which the molecules move or an increase in the number of gas particles in the reaction The question states that the temperature is constant Thus we need See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member

	All pure substances have a positive entropy at roomtemperature.
	The dissolution of an ionic salt in water usually leads to anincrease in entropy of the system (salt + water).
	S^o(one mole O₃(g)) > S^o(onemole O₂(g)) at 25^oC.
	The entropy of ice at 0^oC is lower than that of waterat 0^oC.
	When a metallic crystal is heated, its entropy increases due toincreasing atomic vibrations.