A calorimeter was calibrated with an electric heater, which supplied 22.5 kJ of energy as heat to the calorimeter and increased the temperature of the calorimeter and its water bath from 22.45 8C to 23.97 8C. What is the heat capacity of the calorimeter?
What does heat capacity of the calorimeter mean? And how would I go about solving this problem?
Textbook 4A.11
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 111
- Joined: Wed Sep 30, 2020 9:35 pm
Re: Textbook 4A.11
i'm not 100% certain on the definition of the heat capacity of the calorimeter, but google says it the quantity of heat absorbed by the calorimeter for each temperature increase of 1 ˙C, which makes sense with the definition of C we've established with other compounds like liquid water or ice.
you would find heat capacity of the calorimeter by calculating 22.25 kJ/(23.97-22.45 ˙C) which equals 14.8 kJ/˙C ! hope this helps :)
you would find heat capacity of the calorimeter by calculating 22.25 kJ/(23.97-22.45 ˙C) which equals 14.8 kJ/˙C ! hope this helps :)
-
- Posts: 143
- Joined: Wed Sep 30, 2020 9:37 pm
- Been upvoted: 2 times
Re: Textbook 4A.11
Heat capacity can be defined as the amount of heat that is required to raise the temperature of a certain substance. The equation to calculate heat capacity is q/delta T.
-
- Posts: 106
- Joined: Wed Sep 30, 2020 10:01 pm
Re: Textbook 4A.11
Since heat capacity is the heat required to raise the temperature of an object by 1°C, then I believe that the heat capacity of a calorimeter is the amount of heat absorbed by the calorimeter that is required to raise the temperature by 1°C. Heat capacity of a calorimeter can be calculated using the equation C = q/ΔT where C is the heat capacity of the calorimeter, q is the heat absorbed by the calorimeter, and ΔT is the temperature change. Hope this helps! :)
-
- Posts: 102
- Joined: Wed Sep 30, 2020 10:09 pm
Re: Textbook 4A.11
Just like a substance has a heat capacity that determines how much heat is necessary to raise its temperature, a calorimeter that contains a reaction has a heat capacity. The temperature change in the calorimeter shows how much heat the reaction released or absorbed.
-
- Posts: 103
- Joined: Wed Sep 30, 2020 9:51 pm
Re: Textbook 4A.11
Heat capacity looks for the amount of heat needed to raise the temperature by 1 degree, so to solve this we'd use the equal q=C*dT and get C= 1/dT. Then you'd plug in your q from the equation and find the change in temp to solve the problem.
-
- Posts: 103
- Joined: Wed Sep 30, 2020 9:51 pm
Re: Textbook 4A.11
Heat capacity looks for the amount of heat needed to raise the temperature by 1 degree, so to solve this we'd use the equal q=C*dT and get C= 1/dT. Then you'd plug in your q from the equation and find the change in temp to solve the problem.
Return to “Heat Capacities, Calorimeters & Calorimetry Calculations”
Who is online
Users browsing this forum: No registered users and 6 guests