Asked by Dylan
I have a few problems im having trouble with, any help..?
1.
If a peice of aluminum with mass 3.90g and a temperature of 99.3C is dropped into 10.0cm^3 of water at 22.6C, what will be the final temperature of the system?
2.
If a peice of cadmium with a mass 65.6g and a temp. of 100.0C is dropped into 25.0 cm^3 of water at 23.0C, what will be the final temp.
3.a piece of unknown metal with mass 23.8g is heated to 100.0C and dropped into 50.0cm^3 of water at 24.0.The final temp is 32.5C. What is the specific heat.
Help, these are soo confusing!!
1.
If a peice of aluminum with mass 3.90g and a temperature of 99.3C is dropped into 10.0cm^3 of water at 22.6C, what will be the final temperature of the system?
2.
If a peice of cadmium with a mass 65.6g and a temp. of 100.0C is dropped into 25.0 cm^3 of water at 23.0C, what will be the final temp.
3.a piece of unknown metal with mass 23.8g is heated to 100.0C and dropped into 50.0cm^3 of water at 24.0.The final temp is 32.5C. What is the specific heat.
Help, these are soo confusing!!
Answers
Answered by
DrBob222
mass metal x specific heat metal x (Tfinal-Tinitial) + mass water x specific heat water x (Tfinal-Tinitial) = 0
The above will solve any of these problems. Just plug in the numbers and solve for the one unknown.
The above will solve any of these problems. Just plug in the numbers and solve for the one unknown.
Answered by
Dylan
how do i know the specific heat?
Answered by
DrBob222
I'm surprised they aren't given in the problem. At any rate, look up the specific heat of Al from problem 1 and Cd from problem 2. Problem 3 gives you temperatures and you are to calculate specific heat. The specific heat of water is 4.184 Joules/grams or 1.0 calories/gram.
Answered by
Kool CHem kIDD
Number one is about 28.5 C
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