Consider the following situation. A colorimeter was used to determine the heat f
ID: 928722 • Letter: C
Question
Consider the following situation. A colorimeter was used to determine the heat flow of a chemical change. The combustion of a particular sample caused the temperature of a 100 g of water to increase from 10 degrees Celsius to 75 degrees Celsius.3. What is the equation used to determine the heat flow? 4. What is the equation used to determine the heat flow of this particular problem? (HINT: substitute your values for m,C,and delta T into the equation). Consider the following situation. A colorimeter was used to determine the heat flow of a chemical change. The combustion of a particular sample caused the temperature of a 100 g of water to increase from 10 degrees Celsius to 75 degrees Celsius.
3. What is the equation used to determine the heat flow? 4. What is the equation used to determine the heat flow of this particular problem? (HINT: substitute your values for m,C,and delta T into the equation).
3. What is the equation used to determine the heat flow? 4. What is the equation used to determine the heat flow of this particular problem? (HINT: substitute your values for m,C,and delta T into the equation).
Explanation / Answer
The equation for heat flow is q = mcT
Where m is the mass
C is the specific heat
T is the temperature change
T = tfinal – tinitial = 75C - 10C = 65C
q = 100 g x 4.184 J/gC x 65C
= 2.7 x 104 J
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