For the reaction below, ΔH = –118.9 kJ. 2 NO (g) + O2 (g) ⇌ 2 NO2 (g) Will the reaction shift right, left, or stay the same if you add oxygen gas? _______ Will the reaction shift right, left, or stay the same if you add nitrogen dioxide gas? _______ Will the reaction shift right, left, or stay the same if you increase the volume of the container? _______ Will the reaction shift right, left, or stay the same if you plunge the container in an ice bath? _______

Refer to the phase diagram. Which letter represents the critical point? _______ Which letter is located in the gas phase region? _______ Which letter represents a point where the solid and liquid are in equilibrium? _______ What is the boiling point (in °C) at 675 mmHg? (Round to a whole number with no decimals.) _______ What is the melting point (in °C) at 800 mmHg? (Round to a whole number with no decimals.) _______

What is the pH of a {M} M solution of ammonium bromide? Report your answer to 2 decimal places. Kb of NH3 = 1.8×10-5

The standard Gibbs free energy for the reaction A + B → C is −{g} kJ at 298 K. What is the equilibrium constant for this reaction? Report your answer to 2 sig figs. Do not round in the middle of the calculation.

The following data were obtained for a reaction. What is the activation energy in kJ? Rate Constant Temperature (°C) Trial 1 {k1} x 10 – 3 {T1} Trial 2 {k2} x 10 – 3 {T2} Format Your Answer Round your answer to two decimal places. Record your units in kJ. Make sure to use 273.15 to convert between C and K.

What is the Ka for an acid if a {M} M solution has a pH of {pH}? Report your answer to 2 sig figs.

Answer the True/False questions below based on the reaction path. The energy of the reactants is approximately 127 kJ. _______ The activation energy is approximately 25 kJ. _______ The energy of the transition state is approximately 127 kJ. _______ If a catalyst is used, the activation energy will be larger than 25 kJ. _______ The energy of the products is approximately 107 kJ. _______

Describe the difference between an executable and a process. Describe how an operating system can reduce the amount of space associated with a process.

Describe what the ctags unix utility does and how it can be used with the vi editor.

The recommendation of Calcium intake for adults up to age 50 is            mg per day.