How much heat is required to raise the temperature of 100 g of lead 20 degrees C? The specific heat of lead is 0.0305 cal/g K.

Question

A) 51 cal
B) 61 cal
C) 71 cal
D) 81 cal

Answer 1

The answer depends upon where the temperature is now. Assuming it is solid lead to solid lead (that is it does not go through a melting range or boiling range), it is
q = mass Pb x specific heat x 20