Para realizar soldadura de hierro (Fe), se utilizan acetileno y oxígeno, para producir el fuego que derretirá el hierro. El acetileno contenido en el tanque, ocupa un volumen de 120 L a una
presión de 25 atm. ¿Qué presión deberá tener el acetileno para que ocupe un volumen de 150
L?

3

explanation:

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.