¿cuál ha sido la operación más importante de la quimica en el desarrollo de la tecnología?

one of the key contributions the field of chemistry has provided to our burgeoning society is the ability to harness and store electrical energy—electricity. electricity had long been an intellectual curiosity, and the phenomena became more understood through experiments by chemists and physicists.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.