The pressure of a sample of dry air is held constant 2.25 atm while the temperature is decreased from 100 °C to 7.0 °C the original volume of the sample is 43 L which of the following is the closest to the final volume of the sample? A. 32 L
B. 3.0 L
C. 57 L
D. 610 L​

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .