Chemistry Practice Problems Entropy Practice Problems Solution: Consider the following reaction at 298 K:2 H2 (g) ...

🤓 Based on our data, we think this question is relevant for Professor Kobko-Litskevitch's class at HUNTER.

# Solution: Consider the following reaction at 298 K:2 H2 (g) + O2 (g) → 2 H2O (g)     ΔH= -483.6 KJCalculate the following quantities.i) ΔSsys=ii) ΔSsurr=iii) ΔSuniv=

###### Problem

Consider the following reaction at 298 K:

2 H(g) + O(g) → 2 H2O (g)     ΔH= -483.6 KJ

Calculate the following quantities.

i) ΔSsys=

ii) ΔSsurr=

iii) ΔSuniv=

###### Solution

In order to find the change in entropy for the system, we need values for S of the product and both reactants.

$S\ of\ H_2 = 130.7\ \frac{Jmol}{K}\\ S\ of\ H_2O = 188.8\ \frac{Jmol}{K}\\ S\ of\ O_2 = 205.2\ \frac{Jmol}{K}$

View Complete Written Solution

Entropy

Entropy

#### Q. For the following questions circle the correct answer. There is one and only one correct answer.The substance with the largest value for entropy (at T...

Solved • Tue Oct 31 2017 15:46:01 GMT-0400 (EDT)

Entropy

#### Q. ΔS is positive for the reaction _______. a. CaO(s) + CO2(g) → CaCO3(s) b. N2(g) + 3H2(g) → 2NH3(g) c. 2SO3(g) → 2SO2(g) + O2(g) d. Ag+(aq) + Cl-(a...

Solved • Tue Oct 17 2017 17:31:32 GMT-0400 (EDT)

Entropy

#### Q. Which one of the following processes produces a decrease in the entropy of the system? a. boiling water to form steam b. dissolution of solid KCl in...

Solved • Tue Oct 17 2017 17:18:06 GMT-0400 (EDT)

Entropy

#### Q. The thermodynamic quantity that expresses the degree of disorder in a system is _________. a. enthalpy b. internal energy c. bond energy d. entrop...

Solved • Tue Oct 17 2017 15:51:26 GMT-0400 (EDT)