SOS PLEASE HELPScenarios of an enclosed gas. 1. The number of collisions with the container decreases.
2. The average speed of the gas particles is increased.
3. The average distance between the gas particles decreases.
What change(s) must occur to elicit these effects on the state of the gas?

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.