| 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. What must be the specific heat of a sample
of an unknown material of 36.359g, when 59.912 J of heat are applied raising the
temperature 152.0°C?
|
| 2. What would be the final temperature of a 73.174g sample of
cobalt with an initial temperature of 102.0°C, after it loses 6800 J? (Note the specific
heat of cobalt is 0.4210 J/g x °C)
|
| 3. How many calories are required to raise
the temperature of a 29.352g sample of water by 52.0°C? (Note the specific heat of water
is 1.00cal/g x °C)
|
Answers
1) Cp = 10.84 J/g
x°C
2) TF =
-120°C
3) q = 1530 cal |
Please forward all questions, comments and criticisms to Gregory L. Curran.
© Copyright 2004 Fordham Preparatory School, All Rights Reserved.
Last Modified May 22, 2004 |