Question

Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more compli- cated, but this is a reasonable first approxima- tion.) The combustion of carbon is described by the equation
C(s) + O2(g) −→ CO2(g) ∆H◦ = −394 kJ What is the value of q (heat) when a lump of coal of size 5 cm×4.5 cm×4 cm is burned?
Answer in units of kJ

Answer 1

I worked this problem earlier; if you can't find it I will give you a link.

Answer 2

I want you to show me how to work out,, the calculation,, please ❤️