TRY IT Calculating ASrxn Substance
S (J/mol. K)
Use the information in the table to calculate ASrxn
for each of these reactions. Round all answers to
nearest whole number
H2(g)
130.58
N2(g)
191.50
3H2(g) + N2(g) → 2NH3(9)
ASon =
J/K
NH3(g)
192.5
CH2() + 202(g) → CO2(g) + 2H2O(g)
ASin |
J/K
CH (9)
186.3
K
O2(g)
205.0
2N2(g) + O2(g) → 2N2O(g)
ASixn = J/K
CO2(g)
213.6
DONE
H2O(g)
188.83
N2O(g)
220.0

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?