A spray bottle is packaged \'under pressure\'. Consider the contents of the can

Question

A spray bottle is packaged 'under pressure'. Consider the contents of the can to be a "liquid". When the spray knob is pressed, a gaseous "vapor" is spontaneously released into the environment. As the contents come out of the can, it must 'push' the atmosphere away and this requires work energy. Answer the following questions below. Write the chemical reaction equation describing this physical process. Be sure to note phases of the reactants/products and the proper placement of work energy. Is the process endothermic or exothermic. Explain what is happening to the changes in entropy as the physical process occurs What is the sign the change in entropy.

Explanation / Answer

1.(a) The following reaction occurs

Liquid spray + energy ----- > Gas spray

The liquid spary receives energy from the surrounding and converts to gaseous spray.

(b): As the liquid spray is converted to gas, the entropy increases.

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