Calculate the amount of heat in BTU required to change the temperature of 10 lb of copper from 100°F to 150°F. The specific heat of copper is 0.09 BTU/lb. a. 10 lb x 0.09 BTU/lb -0.9 BTU b.10 lb x 50°F = 500 BTU c.The amount of heat required cannot be calculated using the information given. d.10 lb x 50°F ~ 0.09 BTU/ID = 45 BTU