Problem: Consider the signs for ΔHrxn and ΔSrxn for several different reactions. In which case is the reaction spontaneous at all temperatures?a) ΔHrxn < 0; ΔSrxn < 0b) ΔHrxn > 0; ΔSrxn > 0c) ΔHrxn < 0; ΔSrxn > 0d) ΔHrxn > 0; ΔSrxn < 0
FREE Expert Solution
Recall that when ΔH and ΔS are given, we can determine the spontaneity of the reaction based on their signs.
We can use the Punnett square shown below:
Problem Details
Consider the signs for ΔHrxn and ΔSrxn for several different reactions. In which case is the reaction spontaneous at all temperatures?
a) ΔHrxn < 0; ΔSrxn < 0
b) ΔHrxn > 0; ΔSrxn > 0
c) ΔHrxn < 0; ΔSrxn > 0
d) ΔHrxn > 0; ΔSrxn < 0
a) ΔHrxn < 0; ΔSrxn < 0
b) ΔHrxn > 0; ΔSrxn > 0
c) ΔHrxn < 0; ΔSrxn > 0
d) ΔHrxn > 0; ΔSrxn < 0
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Spontaneous Reaction concept. You can view video lessons to learn Spontaneous Reaction. Or if you need more Spontaneous Reaction practice, you can also practice Spontaneous Reaction practice problems.
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