What I mean is that if you had an equation from reactants to products, the ΔH or ΔrHθ would always be the arrow going from reactants to products. There wouldn't be any arrows going down or up called ΔH or ΔrHθ if that makes sense?
What I mean is that if you had an equation from reactants to products, the ΔH or ΔrHθ would always be the arrow going from reactants to products. There wouldn't be any arrows going down or up called ΔH or ΔrHθ if that makes sense?
The arrow goes from reactant to products only so one direction only
They’re very subtly different, but in relation to most Hess’s law questions they’re the same. Thé standard enthalpy of reaction, is the enthalpy change of a reaction in standard conditions. The enthalpy change is just that, the change inenthalpy during a process. Delta H just describes how energy changes, it could be in relation to lattice formation, solution or indeed a reaction. Normally for a delta H thats not in relation to a reaction you would use the specific notation, so most people assume when you see delta H, it’s analogous to the enthalpy of reaction