A 55 kg block of granite has an original temperature of 15.0 C. Look below for the rest of the question.
What will be the final temperature of this granite if 4.5x10^4kJ of heat energy are added to the granite?
Wieight of granite block = w = 55 kg
Initial temperaturee of granite block = ti = 15.0 degrees C
Heat energy added = h = 4.5x10^4 kJ = 45000
We know specific heat of Granite = s = 0.79 kJ/kg/decree C
Therefore rise in temprrature of the granite block is gioven by:
Final temperature of block = tf = ti + h/(s*w)
Substituting the actual valuse on abobe equation we get:
tf = 15.0 + 45000/(0.79*55) = 15.0 + 1035.67 = 1050.67 degrees C
Final temperature of granite block will be 1050.67 degrees C