Briefly answer following questions, using mostly Words, with as few mathematical symbols as possible. If you insist on using symbols, you must DEFINE every symbol! a. Briefly discuss the Free Expansion Process for a gas. b. Briefly discuss the Throttling (Joule-Thompson or Joule-Kelvin) Process for a gas. c. Briefly discuss the Constant Volume Gas Thermometer, which, in principle is used to define the Absolute (Kelvin) Temperature scale. d. Briefly discuss the triple point of water, which is used to numerically set the Absolute (Kelvin) Temperature scale.