Posted by Sarah on Sunday, July 4, 2010 at 8:57am.
A piece of aluminum (specific heat 910 J/kg C) of mass 200 g at 80C is dropped into a styrofoam cup filled with 100 mL of water at 20C. What the final temperatures of the water and the aluminum? Show calculations.
I have Q=m c T
but I got 80C which I know is wrong because I set up Q1=Q2 which gave me that, could you please help me set up this problem.

physics  Damon, Sunday, July 4, 2010 at 9:39am
Call final temp = T
Heat lost by Al = specific heat AL * mass of Al * (80T)
Heat gained by water  specific heat of H2O * mass of H2O *(T20)
Then
Heat lost by Al = Heat gained by H2O

physics  Sarah, Sunday, July 4, 2010 at 10:47am
right but I got 80 C both times, that cannot possibly be correct.
Answer This Question
Related Questions
 physics  Assume that 10 g of steam is added to 100 g of water initially at 19°C...
 physics  1. Assume that 10 g of steam is added to 100 g of water initially at ...
 Physics  A 100g aluminum calorimeter contains a mixture of 40 g of ice and 200...
 physics  a .250kg block of aluminum is heated to 100 C and then dropped into ....
 Chemistry  I have a few problems im having trouble with, any help..? 1. If a ...
 Physic  Assume all temperatures to be exact. An aluminum spoon at 84 degree C ...
 Physics  An aluminum spoon at 84 C is placed in a Styrofoam cup containing 0....
 Physics  An alloy of mass 225g is heated to 550C. It is quickly placed in 450g ...
 Physics  If 400 gm of aluminum are put into 200 gm of water at 20 C in 110 gr. ...
 Chemistry  A 54.7g sample of aluminum at 95.0°C is dropped into 35.0 g of ...
More Related Questions