Which of the following statements are correct aboutcontrolling chemical reaction

Question

Which of the following statements are correct aboutcontrolling chemical reactions ?
a) At low temperatures, an exothermic reaction usually favorsthe formation of products. b) At high temperatures, an decrease in entropy favors theformation of products.
c) Reactions occur more rapidly at high temperatures that at lowtemperatures. d) When a solid material is used as a reactant, the reactonwill prooceed faster when the solid particles are made as small aspossible. e) Catalysts are rarely used in large industrial chemicalprocesses. MORE THAN ONE CAN BECORRECT Which of the following statements are correct aboutcontrolling chemical reactions ?
a) At low temperatures, an exothermic reaction usually favorsthe formation of products. b) At high temperatures, an decrease in entropy favors theformation of products.
c) Reactions occur more rapidly at high temperatures that at lowtemperatures. d) When a solid material is used as a reactant, the reactonwill prooceed faster when the solid particles are made as small aspossible. e) Catalysts are rarely used in large industrial chemicalprocesses. MORE THAN ONE CAN BECORRECT

Explanation / Answer

We Know that :         The followingstatements are true regarding the chemical Reactions :      An exothermic reaction has heatas a product, so having a lack of heat in the system allows formore of the products             including heat to becreated.       Reactions occur more rapidly athigher temperatures than at lower temperature as we know thataccording to       Arrehenius plot of chemicalReactions that for every 100C rise in temperaturethe rate of the Reaction doubles.       By decreasing the size of thesolid particles of the reactant the surface area increases whichincreases the Rate of        the Reaction.

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