Question

A certain freezing process require that room temperature be lowered from 40 °c at the rate of 4°c per hour.what will be room temperature after 12 hours of the process begin

Answer 1

Answer: -8°C

Step-by-step explanation:

Initial temperature: 40°C

rate temperature lowered every hour: 4°C

therefore, temperature after 12 hours: 12x4=48= 48-40= -8°C