Page 151 - Chemistry eBook
P. 151
Sample Regents Questions
June 2013 #40
Answer
Choice #3
The explanation of this question is shown on this card and the next card.
1. The example is talking about a change in temperature and heat. Therefore, we know to look at
Reffy, Table T (p. 12): q=mC∆T
2. Find the values for each part of the equation: a. q = 209 J
b. m = 10 g
c. C = 4.18 (specific heat capacity for water: Reffy, Table B)
d. ∆T = X This is what we will be trying to figure out. We were only given one
temperature, so we can’t calculate the difference.
3. Plug the values into the equation: 209 = (10) (4.18) (X)
UNIT 5: MATTER © 150
