You are chemical engineer and are researching the possibility of employing theor

Question

You are chemical engineer and are researching the possibility of employing theoretical reaction as part of larger process. You have theorized the following about the reaction: The reaction goes combine solids and liquids to form multiple aqueous species The reaction is exothermic Which of the following are most likely true about this process? Select all that apply. The entropy of the system increases The entropy of the universe decreases The entropy of the surroundings decreases The entropy of the system decreases The entropy of the surroundings increases The reaction will likely be non-spontaneous The entropy of the universe increases The reaction will likely be spontaneous

Explanation / Answer

True statement about a process which combines solids and liquids to form aqueous species with,

exothermic reaction would be the following,

(D) The entropy of the system decreases

As the surrounding entropy increases due to dissipated heat (exothermic reaction), the entropy of system goes down due to heat released from it to outside.

(E) The entropy of the surrounding increases

As heat is given off in an exothermic reaction, the heat absorbed by the surrounding increases its entropy. dH is -ve, dS is +ve.

(H) The reaction willikely be spontaneous

exothermic reactions usually are spontaneous in nature.

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