The following data was collected as per Part 1A of the lab procedure. Mass ice = 9.00 g Heat of fusion of ice = 6.01E+03 J/mol Mass of water = 50.0 g Initial Temp of water = 18.86 °C Final Temp of water 5.25 °C Specific heat of water = 4.184 Based on this data the calorimeter constant is: J/C
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![The following data was collected as per Part 1A of the lab procedure.
Mass ice = 9.00 g
Heat of fusion of ice 6.01E+03 J/mol
Mass of water
50.0 g
%D
Initial Temp of water
18.86 °C
!!
Final Temp of water 5.25 °C
Specific heat of water = 4.184
Based on this data the calorimeter constant is:
J/'C](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0c45c9dd-c32a-4233-8cf6-6e79e9ea5944%2F5cc8c6eb-89dd-48dd-b500-7d9d261031da%2Fj3bcljd_processed.jpeg&w=3840&q=75)
![Part 1A
Determination of the calorimeter constant
1. Determine the mass (top-loading balance) of two coffee cups and a lid (one coffee
cup
sits
inside the other). Place 50 mL of distilled water in the inner cup and weigh the cups plus
contents.
2. Determine the initial temperature of the water in the
cup.
3. Obtain a piece of ice, wipe off any liquid water and quickly place it in the inner coffee
Once the ice has completely melted (never open the lid to check while the experiment is still
going), determine the final temperature of the water.
cup.
4. Weigh the cups once more to determine the mass of ice which was added.
5. Repeat the process once more. Make certain you dry the inner cup
before
your
second run.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0c45c9dd-c32a-4233-8cf6-6e79e9ea5944%2F5cc8c6eb-89dd-48dd-b500-7d9d261031da%2Fu14f1rv_processed.jpeg&w=3840&q=75)
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