Using Hess' Law, we can calculate the heat of reaction of the gasification of coal. Multiplying the second reaction by 2 and reversing the third reaction:
<span>The gasification of coal is a method of producing methane by the following reaction. C(s) + 2H2(g) → CH4(g) ∆H=? Find ∆H by using the enthalpy changes in the following combustion reactions: C(s) + O2(g) → CO2(g) ∆H=-394 kj H2(s) + ½ O2(g) → H2O(l) ∆H=-286kj CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ∆H=-891kj
The formation of an Ionic bond is the result of the transfer of one or more electrons from a metal onto a non-metal. Covalent Bonding: Bonding between non-metals consists of two electrons shared between two atoms.