Vendothermicy 120
COMPLETE
100
D
80
E
Which of the following segments of the graph
represent a phase change in temperature?
Check all that apply.
A-B
Temperature,
degrees 60
Celsius
40
B-C
20
B
с
y
D
C-D
L50
50
D-E
100
А
-20-
<&
Heat added, KJ
E-F
DONE

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 .