Chapter 6, Problem 114RQ

Using the results from Analyzing and Solving Multi- Concept Problems in Section 6.6 and the Practice Exercise 6.14 just after it, determine the heat of reaction for the ionization of one mole of acetic acid in water.

Consider the distribution of molecular kinetic energies shown in the following diagram for a gas at $\text{25 °C}$:

(a) Which point corresponds to the most frequently occurring (also called the most probable) molecular kinetic energy?

(b) Which point corresponds to the average molecular kinetic energy?

(c) If the temperature of the gas is raised to $\text{50 °C}$, how will the height of the curve at B change?

(d) If the temperature of the gas is raised to $\text{50 °C}$, how will the height of the curve at A change? How will the maximum height of the curve change?