| Name__________________________ |
Section____________________________ |
This page is designed to help students practice written problems, and is
meant to be printed out. Hit the print command and show all work in the spaces
provided. Use the 5-step method, and be sure to round you answers correctly and
include units where appropriate.
q = m(DT)Cp
Use the above formula to solve the problems below.
Remember to list the known and unknowns.
| 1. How many degrees would the temperature of
a 450 g ingot of iron increase if 7600 J of energy are applied to it? (The specific
heat of iron is0.4494 J/g x oC)
|
| 2. A 250 g sample of water with an initial temperature of 98.8 oC loses 7500 joules of heat. What is the final
temperature of the water? (Remember, final temp = initial temp - change in temp)
|
| 3. Copper has a specific heat of 0.38452 J/g
x oC. How much change in temperature would the addition of 35 000 Joules
of heat have on a 538.0 gram sample of copper?
|
Answers
1) 38 oC
2) 92 oC
3) 170 oC |
Please forward all questions, comments and criticisms to Gregory L. Curran.
© Copyright 2004 Fordham Preparatory School, All Rights Reserved.
Last Modified May 22, 2004 |