10. (02.05 MC) The graph shows a sample of gas when it is hot, cold, and at room temperature,
В
Number of Particles
Energy
Which statement is correct about curves A and C? (5 points)
A represents hot gas and represents cold gas
A represents cold gas and represents hot gas
A represents gas at room temperature and represents hot gas.
A represents gas at room temperature and represents cold gas

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3