Question

A certain freezing process requires that the 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?
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Answer 1

Answer:

Step-by-step explanation:

given that

Let us assume that the lowered temperature as negative,

Initial temperature = 40°C

Change in temperature per hour = -50°C

Change in temperature after 10 hours = (-5) × 10 = -50°C

∴The final room temperature after 10 hours of freezing process = 40°C + (-50°C)

= -10oC

The room temperature 10 hours after the process begins= -10oC