Question

define the following:
1) enthalpy 2) limiting Reactant

Answer 1

1.Enthalpy is  a property of a thermodynamic system, is equal to the system's internal energy plus the product of its pressure and volume. ... The unit of measurement for enthalpy in the International System of Units (SI) is the joule.

2. The limiting reagent in a chemical reaction is the substance that is totally consumed when the chemical reaction is complete. The amount of product formed is limited by this reagent, since the reaction cannot continue without it.

Answer 2

1.Enthalpy is defined as thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.....

2.Limiting reactant is defined as in a chemical reaction that determines the amount of product that is formed......