Question

A certain freezing process requires room temperature to be lowered from 60°C at the rate of 8°C ever
hour. What will be the room temperature, 8 hours after the process begins?​

Answer 1

Answer:

Given that

Let us assume that the lowered temperature as negative,

Initial temperature = 40oC

Change in temperature per hour = -5oC

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

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

= -10oC

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

Step-by-step explanation:

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