下列热化学方程式书写正确的是
A.C(s) + O2(g) ="=" CO2(g)△H= +393.5kJ/mol |
B.2SO2 + O2 ="=" 2SO3△H=-196.6kJ/mol |
C.H2(g) + 1/2O2(g) ="=" H2O(l)△H=-285.8kJ/mol |
D.2H2(g) + O2(g) ="=" 2H2O(l)△H=-571.6KJ |
下列热化学方程式书写正确的是
A.C(s) + O2(g) ="=" CO2(g)△H= +393.5kJ/mol |
B.2SO2 + O2 ="=" 2SO3△H=-196.6kJ/mol |
C.H2(g) + 1/2O2(g) ="=" H2O(l)△H=-285.8kJ/mol |
D.2H2(g) + O2(g) ="=" 2H2O(l)△H=-571.6KJ |