Consider the reaction: CH4(g) + 2 O2(g)® CO2(g) + 2 H2O(g). CalculateDrxnH andDrxnS for this reaction at 2000°C using the temperature dependent heat capacity values provided in table below:
Heat Capacities of Substances in the Form
CP = a + bT + cT2 (J/K-mol) at 101.3 kPa
Substance
|
a/(J/mol-K)
|
b/(10-3 J/mol-K2)
|
c/(10-7 J/mol-K3)
|
CO2(g)
|
26.648
|
42.262
|
-142.4
|
CH4(g)
|
14.143
|
75.495
|
-179.64
|
O2(g)
|
25.503
|
13.612
|
-42.553
|
H2O(g)
|
30.206
|
9.936
|
11.14
|