Question

5. A certain freezing process requires that room temperature be lowered from 60°C at the
rate of 4°C every hour? What will be the room temperature 18 hours after the process
begins?​

Answer 1

Initial Temperature = 60° C

Rate of change in temperature = 4°C/hour

Time = 18 hours

So, in 10 hours the temperature would be decreased by 18*4 = 72°C.

So, Final Temperature = 60 - 72 = -

12 °C