An example: o oThe temperatures before mixing: NaOH solution Tb = 22.72 C o HCl solution Ta = 22.48 C.
The average temperature before mixing is: Ti = (Ta+ Tb)/2 = 22.60 C.To calculate the heat capacity of the calorimeter use Equation 2.
1. In this experiment you will measure the heat capacity of a calorimeter by mixing 50. mL of 1.0 M HCl solution with 50. mL of 1.0 M NaOH solution in the calorimeter. The heat capacity of the calorimeter is expected to be within the range 0 and 100. J/K.
a) At what temperature difference, ?T, does the heat capacity of the calorimeter become larger than 100. J/K?
b) At what temperature difference, ?T, does the heat capacity of the calorimeter become negative?
2. Under what temperature conditions (low T, high T, all T, nonspontaneous at all T) would this reaction occur spontaneously? Explain.