The standard heat capacities (C_(p)^(\theta )) of O_(2)(g),CO(g) and CO_(2)(g) in the range 298 to 2000 K
can each be represented by C_(p)^(\theta )=a+bT+(c)/(T^(2)) with these coefficients:
For the reaction 2CO(g)+O_(2)(g)->CO_(2)(g)
Use these data (and the table, see below) to find an expression for \Delta _(r)H^(\theta )(T_(2)) in the range 298
to 2000 K and calculate \Delta _(r)H^(\theta )(T_(2)=1200).