Question

How many kilojoules are required to raise the temperature of a 150. g sample of silver from 25 °C to 135 °C? Silver has a specific heat of 0.235 J/g °C.

Answer 1

3.8775 kJ

Step-by-step explanation:

The formula is Q=mcdeltat

We know m (mass) is 150, c (specific heat) is 0.235, and delta t (change in temperature) is 135-25=110

Plug that in and solve for Q

150*0.235*110=3877.5 J

The problem is that this is still in joules so we have to convert to kilojoules

3877.5 J * 1 kJ/1000 J = 3.8775 kJ