First Law of Thermodynamics
The first law of thermodynamics is that energy cannot be created or destroyed
(conservation of energy).
The total energy of the universe cannot change but it can be transfer.
DEuniverse = 0 = DEsystem + DEsurroundings
Thermochemistry and Thermodynamics
1) A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HNO3 in a
coffee cup calorimeter. If both solutions were initially at 35.00C and the temperature of the
resulting solution was recorded as 3