Question

a certain freezing process requires that room temperatured be lowered from 40°c at the rate of 5°c every hour .what will be the room temperature 10 hours after the process begins?
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Answer 1

Answer:

initial temperature = 40∘ C

Rate of change in temperature = 5∘ C/hour

time = 10 hours

So, in 10 hours the temp would be decreased

by 10×5=50∘ C

So, final temperature = 40−50∘=−10∘ C