At 25 C, 1.00 mole of O2 gas was found to occupy a volume of 12.5 L at a pressure of 198 kPa. what is the value of the gas constant

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.) circle motion requires a force to give it a centripetal acceleration.

i think its 5049.

i hope this !