Calculate the Molaroth of 2.00L or 18.5 gram of H2SO4 Concentrated sulfuric acid.
(Atomic weight; H=1, S=32, O=16)

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.