Question
Asked Feb 1, 2020
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Question
Consider the reaction below.
|Reaction:
C2 (g)
I2 (g)
2 ICI (g)
<
17.78
AH°f
| (kJ/mole)
S°
247.551
116.135
223.066
(J/mole K)
If 0.45 mol 12, 0.45 mol Cl2, and 2.42 mol ICI are added to a 2.0 L flask at 25°C, what is the molar concentration of ICI at equilibrium?
Answer
A. 0.076 M
B. 1.36 M
C.
1.14 M
D. 0.151 M
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Question Consider the reaction below. |Reaction: C2 (g) I2 (g) 2 ICI (g) < 17.78 AH°f | (kJ/mole) S° 247.551 116.135 223.066 (J/mole K) If 0.45 mol 12, 0.45 mol Cl2, and 2.42 mol ICI are added to a 2.0 L flask at 25°C, what is the molar concentration of ICI at equilibrium? Answer A. 0.076 M B. 1.36 M C. 1.14 M D. 0.151 M

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Expert Answer

Step 1

The enthalpy change of the reaction is determined by subtracting enthalpy change of reactants from products as follows:

Chemistry homework question answer, step 1, image 1
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Step 2

The entropy change for the reaction is calculated by subtracting entropy of reactants from products as follows:

Chemistry homework question answer, step 2, image 1
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Step 3

The change in standard Gibbs free energy is related to enthalpy change and entropy change as giv...

Chemistry homework question answer, step 3, image 1
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Equilibrium Concepts

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