A 25-g piece of an unknown metal is heated to 100°c and then placed into a calorimeter containing 45g of water at a temperature of 23.0°c.The final temperature of both is 27.0°c. What is the specific heat of the unknown metal? Show the steps
1 Answer
May 13, 2018
Explanation:
First we use the equation
#DeltaT# = (Final temp. - Initial temp.)
- subtract the temperatures then multiply everything
- The
#g# and#°C# units cancel, leaving#J#
Now we take the same equation
- subtract the temps, then divide each side by
#(25g)(-73°c)#
- Multiply
#25g# by#-73°c#
- Then divide
#756J# by#-1825g°C# to get the answer in#J/(g°C)#