Pls help (100 points) Given these reactions:

NO (g) + O3 (g)→NO2 (g) + O2(g), ΔH =−199 kJ

O3 (g)→32O2 (g), ΔH =−142 kJ

O2 (g)→2O (g), ΔH =+495 kJ

What is the ΔH for this reaction?

NO (g) + O (g)→NO2 (g)

−304 kJ

−199 kJ

+154 kJ

+438 kJ

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?