Also known as the Pearson product-moment correlation coefficient, the correlation coefficient (r) measures the linear relationship between two variables, with a value range of -1 to 1. A value close to 1 indicates there is a strong positive linear correlation between two variables; that is, when one variable increases so does the other.
A short definition. Delta H of a reaction is the enthalpy of reaction. H of products minus H of reactants. Each compound has a delta H of formation (dHf). The heats of formation for each substance in a reaction can be added together to compute the energy change for a reaction.
Rating Newest Oldest. Best Answer: Delta, is just a greek letter very used in Math. It's meaning depends on the context. But a very commom meaning, specially for capital delta (a triangle) is difference. For instance, a tempertaure deltya usually means the diffrence of the temperatures of 2 objects.In your case, it probably means the difference of the given values.he Greek letter Delta is used in science and mathematics. I always refers to the change in or the difference of. For example, take the slope formula.