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 begin?​

Answer 1

Answer:

-10°C

Step-by-step explanation:

Given that

,

Let us assume that the lowered temperature as negative,

Initial temperature = 40°C

Change in temperature per hour = -5°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)

= -10°C

The room temperature 10 hours after the process begins= -10°C is the answer.

Hope this helps you!!