Question

How much heat is required to heat 28 g of
solid silver from 130
◦
C to liquid silver at
961
◦
C? The specific heat of solid silver is
0.235 J/g ·
◦
C, and the heat of fusion of silver at its melting point of 961
◦
C is 11.3 kJ/g.
Answer in units of kJ

Answer 1

q1 = heat to raise T from 130 to 961.
q1 = mass Ag x specific heat solid Ag x (Tfinal-Tinitial) [Note: Tfinal is 961).

q2 = heat to melt Ag at 961C.
q2 = mass Ag x heat fusion.

Total q = q1 + q2

Answer 2

14820

Answer 3

5850.18