Question

A certain freezing process requires that room temperature be lowered from 38°c at the rate of 4°c every hour.what will be the room temperature 12 hours after the process begins​

Answer 1

Answer:

Step-by-step explanation: total 12 hrs ×4=48 degree

So 38-48=-10 degree

Answer 2

Answer

Present room temperature =38deg c.

Rate of decrease=4deg c per hour

Temp lowered in 1 hour=4deg c

Temp lowered in 12 hours =4*12=48 deg c

Temp after 12 hours=38-48=-10deg c