Question

Calorimetric evidence for two state transition the relationship between ∆Hcal and ∆Hvan't hoff. A calorimeter measures the heat capacity Cp(T) as a function of temperature T the area under the full curve describe an absorption of heat

1. Express the fraction f=ba+b in terms of K.
2. Express CpT as a function of the heat q0 and the equilibrium constant K(T).

Answer 1

Specific Heat

Data collected during a constant-pressure calorimetry experiment can be used to calculate the heat capacity of an unknown substance. We already know our equation relating heat (q), specific heat capacity (C), and the change in observed temperature (ΔTΔT):

q=mCΔT

Heat, Enthalpy, and Temperature

Given the molar heat capacity or the specific heat for a pure substance, it is possible to calculate the amount of heat required to raise/lower that substance’s temperature by a given amount. The following two formulas apply:

q=mcpΔT