A baker removed a cake from a 177°C oven and placed it on the counter of a 25°C kitchen. According to the second law of thermodynamics, the cake temperature will _____, resulting in a final cake temperature very near ____ °C.
First fill in the blank options:
A. Increase
B. Decrease
C. Stay the same
D. Decrease then increase
Second fill in the blank option:
A. 0
B. 25
C. 75
D. 177
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According to the second law of thermodynamics, heat tends to flow from hotter objects to colder objects until they reach thermal equilibrium. In this scenario, the cake is initially at 177°C, and the kitchen counter is at 25°C.
To determine the change in cake temperature, we need to understand how heat flows between the cake and the kitchen counter. Heat transfer occurs until both objects reach the same temperature.
Since the cake is hotter than the kitchen counter, heat will flow from the cake to the counter. This means that the cake temperature will decrease over time.
Now, let's fill in the blanks:
A. The cake temperature will decrease.
B. The final cake temperature will be very near the temperature of the kitchen counter, which is 25°C.
Therefore, the correct answers are:
A. Decrease
B. 25°C