Question

A science laboratory the temperature of a solid is observed to be minus 3 degrees Celsius . The solid is cooled at a constant rate such that the temperature of the solid reduces by 2 degrees Celsius every minute what is the temperature of the solid after 25 minutes. a . -53 degrees Celsius b. -50 degrees Celsius c. 47 degrees Celsius d. 50 degrees Celsius

Answer 1

Initial temperature = -3°C

Reduction in temperature per minute = 2°C

So, reduction in temperature after 25 minutes = 2 × 25 = 50°C

So, final temp. = - 3 - 50 = -53°C

Answer 2

degree Celsius C. 47 degree celsius