What does the non-standard Gibbs free energy determine about a reaction?

Gibbs Free Energy and Spontaneity

Interactive Video
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Chemistry, Science
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10th - 12th Grade
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Easy

Mia Campbell
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The rate of a reaction
The temperature of a reaction
The spontaneity of a reaction
Whether a reaction is at equilibrium
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following conditions must be met to calculate standard Gibbs free energy?
Pressure must be 1 atm
Temperature must be 298 Kelvin
Enthalpy must be non-standard
Entropy must be non-standard
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the given examples, which condition makes a calculation non-standard?
Standard enthalpy and entropy
Non-standard temperature
Standard temperature
Non-standard pressure
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the predicted sign of enthalpy for a combination reaction?
Positive
Negative
Undefined
Zero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the formation of rust considered exothermic?
It absorbs heat
It releases heat
It requires energy input
It is temperature independent
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of a negative Delta G value?
The reaction is non-spontaneous
The reaction is endothermic
The reaction is at equilibrium
The reaction is spontaneous
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what temperature is the reaction spontaneous according to the practice calculation?
At 788 Kelvin
Below 788 Kelvin
Above 788 Kelvin
At 298 Kelvin
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