Asample of gas has a pressure of 1.5 atm and a volume of 3.5 l, what would be the pressure of this sample of gas if the volume decreases to 2.8 l? show all of the work used to solve this problem. (3 points)

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answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.