Swelling. Swelling (edema) is a build-up of water in the tissues. This can be caused by retaining salt and water due to medicines or heart, liver, or kidney failure. It can sometimes be due to poor nutrition, pelvic tumors, or a blockage in the veins or lymph system.
Reactance, denoted X, is a form of opposition that electronic components exhibit to the passage of alternating current (alternating current) because of capacitance or inductance. In some respects, reactance is like an AC counterpart of DC (direct current) resistance.
The standard enthalpy of reaction (denoted Î´ r H â) is the enthalpy change that occurs in a system when one mole of matter is transformed by a chemical reaction under standard conditions.hat is, the enthalpy of a reaction at constant volume is equal to the change in the internal energy (Î´ E) of the reacting system. The thermal change that occurs in a chemical reaction is only due to the difference in the sum of internal energy of the products and the sum of the internal energy of reactants.