Chemical Thermodynamics_II
Authored by Badrinath Dhakal
Chemistry
University
NGSS covered
Used 1+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the ΔH˚ for the following reaction (in kJ/mol):
Ag+ (aq) + Cl- (aq) ⇌ AgCl (s)
Substance
ΔHf˚(kJ/mol)
Ag+ (aq) = 105.90
Cl- (aq) = -167.2
AgCl (s) = -127.0
+65.7
-55.7
75.7
-65.7
Tags
NGSS.HS-PS1-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the ΔS˚ for the following reaction (in J/mol-K):
Ag+ (aq) + Cl- (aq) ⇌ AgCl (s)
Substance
S˚(J/mol•K)
Ag+ (aq) = 73.93
Cl- (aq) = 56.5
AgCl (s) = 96.11
-23.3
-34.3
+34.3
-43.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ΔG˚ for a reaction (in kJ/mol) if ΔH˚ = -65.7 kJ/mol and ΔS˚ = -34.32 J/mol.K?
-55.5
+55.5
25.5
-555
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The reaction is spontaneous at all temperatures.
The reaction is spontaneous at low temperatures.
The reaction is spontaneous at high temperatures.
The reaction is non-spontaneous at all temperatures.
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
positive
negative
zero
none of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All of the above statements are correct.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is incorrect?
Tags
NGSS.HS-PS3-4
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