Question

a certain freezing process requires that room temperature be lowered from 40 degree Celsius at the rate of 5 degree Celsius every hour what will be the room temperature 10 hours after the process begins

Answer 1

Answer:

-10°C

Step-by-step explanation:

Given:

Present room temperature = 40°C.

Change in 1 hour = 5°

Change in 10 hours = 50°C

Room temperature after 10 hours = 40°C - 50°C = -10°C

Therefore, the room temperature after process begins = 10°C.

Hope it helps!

Answer 2

Room temperature - 40 C

t is also given that the room temperature lowers at the rate of 5° C, After one hour the temperature becomes (40 – 5) = 35° C

After two hours the temperature becomes (35 – 5) = 30° C

Hence after 10 hours the temperature becomes (-10° C)