Question

6.
A certain Freezing process requires that room temperature be lowered from 35°C at the rate of 7°C every
hour. What will be the room temperature 6 hours after the process begins?
​

Answer 1

Answer:

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

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

Temperature at the beginning = 35°C

Rate of decrease in temperature = 7°C per hour

So after 6 hours it will be decreased by 7°C × 6 = 42°C

So after 6 hours the temperature will be

35°C - 42°C= - 7°C

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