Question

6. A certain freezing process requires that
room temperature be lowered from 80° C
at the rate of 10° C every hour. What will
be the room temperature after 10 hours 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