19
QuizMultiple Choice

N/A — Exam

Question 19 • Chemistry

Two cups of coffee, one that is at 10°C and one that is at 20°C , are mixed. Which statement about the temperature of the mixture is correct?

Answer
A
There is no kinetic energy transfer so the temperature of the coffee in the warmer cup is the final temperature.
B
Energy is transferred from faster moving molecules to slower moving molecules, and the result is the average of .
C
The kinetic theory dictates that the temperature of the coffee in the cooler cup is the final temperature.
D
Energy transfer occurs as the molecules collide, and the result is additive; the final temperature is .
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