Which of the following statements are true?
a. the temperature of a gas sample is independent of the average kinetic energy.
b. there are gas molecules that move faster than the average.
c. all the gas molecules in a sample cannot have the same kinetic energy.
d. the average kinetic energy of gas molecules increases with increasing temperature.
e. the average speed of gas molecules decreases with decreasing temperature.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.