1. So what is the first law of thermodynamics? Apply that for the answer.
2.Total q = mass solution x sp.h x (Tfinal - Tinitial) + Ccal(Tfinal-Tinitial)
Than subtract the Ccal*dT.
1. Which of the following explains why the bomb calorimeter exemplifies the First Law of Thermodynamics.
a. It requires the slow flow of heat energy and information is not lost.
b. The loss of heat energy from the sample becomes the gain in heat energy of the water bath
c. It operates under standard isobaric conditions
2. When 2.00 g of calcium metal reacts with 100.00 g of 1.00 M HCl in a coffee-cup calorimeter, the temperature rises from 18.1ºC to 66.8ºC. The heat capacity of the calorimeter apparatus is 131 J/K. Calculate ∆H (in kJ) for the reaction:
Ca(s) + 2HCl(aq) → CaCl_2(aq) + H_2(g)
Assume the specific heat of the solution is 4.18 J/K∙g.
1 answer
1 answer