what is the effect of pressure and volume on the decomposition of HL and also explain the role of catalyst
Answers
Answer:
When there is an increase in pressure, the volume containing the same number of particles is decreased and this increases the chances of successful collisions. Thus the rate of reaction is increased. The molecules gain kinetic energy and move at a faster speed.
Hydrogen chloride is a colourless gas of strong odour; it condenses at -85° C (-121° F) and freezes at -114° C (-173° F). The gas is very soluble in water: at 20° C (68° F) water will dissolve 477 times its own volume of hydrogen chloride. Because of its great solubility, the gas fumes in moist air. A water solution containing 20.24 percent by weight hydrogen chloride boils at 110° C (230° F) without change in composition (azeotropic mixture). In aqueous solution the compound is extensively dissociated into a hydronium ion (H3O+) and chloride ion (Cl-); in dilute solutions the dissociation is essentially complete. Thus, hydrochloric acid is a strong acid.
When there is an increase in pressure, the volume containing the same number of particles is decreased and this increases the chances of successful collisions. Thus the rate of reaction is increased. The molecules gain kinetic energy and move at a faster speed.
Catalysts called enzymes are important in biology. A catalyst works by providing an alternative reaction pathway to the reaction product. The rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.