Identify three things that change about particles and their interactions, during phase changes.

you knsiebedi djd dud ud dud djd du dud djd did d

change of state,solutiom(dissolving substances),mechanical changes

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.