The partial pressure of gases a, b, and c in a mixture are 0.75 atomsphere, 0.25 atomsphere, and 1.25 atomsphere, respectively. What is the total pressure of the gas mixture in millimeters of Hg?

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.

d

explanation:

the answer your looking for is c).