High School

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Suppose that a cup of coffee begins at 185 degrees and, after sitting in a room with a temperature of 66 degrees for 18 minutes, the coffee reaches 180 degrees.

How long will it take before the coffee reaches:

a) 195 degrees

b) 200 degrees

c) 190 degrees

d) 185 degrees

Answer :

Final answer:

Explanation on how to calculate the change in temperature of the coffee when exposed to room temperature over time.

Explanation:

The calculations for the coffee temperature change can be found using the formula:

Determine the heat lost by the coffee: mcΔT

Determine the heat gained by the coffee in the room: mcΔT

Set the two equal to find the final temperature

Calculations for: a) 195 degrees. b) 200 degrees. c) 190 degrees. d) 185 degrees, can be done by utilizing these steps for each specific temperature change.

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