Question

A certain freezing process requires that room temperature be lowered from 40'C at the rate of 4'c per hour. What will be the room temperature afternoon 12hourse of the process begins?​

Answer 1

Initial Temperature = 40° C

Rate of change in temperature = 5°C/hour

Time = 10 hours

So, in 10 hours the temperature would be decreased by 10*5 = 50°C.

So, Final Temperature = 40 - 50  =  - 10°C