You put a thin pot containing 2kg of 20c water on a hot electric stove. You...
You put a thin pot containing 2kg of 20c water on a hot electric stove. You observe that after 180s the water is at 30c.
A) How much thermal energy transfer Q was there into the water
A. 418000
B. 83600
C. -418000
D. -83600
E. None
B) What was the change E_thermal in the water
A. -418000
B. -83600
C. 83600
D. 418000
E. None of the above
C) What was the change E_surroundings in the rest of the universe?
A. -418000
b. 83600
c. -83600
D. 418000
E. None of the above.
D) What is the power output of the electric stove
A. 464W
B. 929 W
C. 2322 W
D. 1393 W
E. None of the above
Homework Answers
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