Question

A certain freezing point process requieres the room temperature to be lowered from 40 degree celcius at the rate of minus 5 degree per hour, when will the temperature be (-20) degree?

Answer 1

Answer:

Hello mate ✌️

Step-by-step explanation:

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

hope it will be helpful to you ✌️

Answer 2

Step-by-step explanation:

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