Question
At temperatures above 0°C, what is the sign of the change in free energy for the conversion of liquid water to ice?
A. Positive
B. Zero
C. Negative
D. Not known
I don't this it is A. I thought it might be c.
A. Positive
B. Zero
C. Negative
D. Not known
I don't this it is A. I thought it might be c.
Answers
Oscar
If temperature is above 0 degree Celsius, water doesn't naturally turn into ice. In fact, the opposite should be expected of.
The only way for water to turn into ice when temperature is above 0 degree Celsius is if there is an external source of energy, or in other words, not naturally occurring.
Therefore this reaction is non-spontaneous.
A non-spontaneous reaction has a delta G greater than 0, which is positive.
Therefore the sign of change in free energy in this case would be positive or A.
The only way for water to turn into ice when temperature is above 0 degree Celsius is if there is an external source of energy, or in other words, not naturally occurring.
Therefore this reaction is non-spontaneous.
A non-spontaneous reaction has a delta G greater than 0, which is positive.
Therefore the sign of change in free energy in this case would be positive or A.