Question

A certain freezing process requires room temperature to be lowered at 40℃ at rate of 50℃ per hour what is the temperature of room after 10 hours?

Answer 1

Correct Question:

A certain freezing process requires that room temperature be lowered from 40°C at the rate of 5°C every hour. What will be the room temperature 10 hours after the process begins?

Step-by-step explanation:

Initial Temperature of the room = 40° C

Rate of change in temperature = 5°C/hour

Time after process begins = 10 hours

So, in 10 hours the temperature of the room would decrease by

10h x 5°C/h = 50°C.

Hence, Final Temperature of the room after 10hours

Initial Temperature - Decrease in temperature in given time

= 40°C - 50°C

= - 10°C

Final Temperature of the room after 10hours is -10°C.