Question

refrigeration cools the room temperature at 40“cc to 5“cc per hour. what is the room temperature 10 hours after the strat of freezing​

Answer 1

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