Question

Exercise number 1.3 question number 6 a certain freezing process requires that room temperature Balod from 40 degree Celsius at the rate of 5 degree Celsius every hour what will be the room temperature of 10 hours after the process begins?​

Answer 1

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