Which is a practical application of boiling-point elevation? a: boiling sea water to recover the salt it contains. b: burning coal to make the steam that powers a steam engine. c: cooling a supersaturated sugar-and-water solution to form rock candy. d: adding antifreeze to water in a car radiator in summer to raise the boiling point. btw its not a

the correct answer is d. adding antifreeze to water in a car radiator in summer to raise the boiling point.

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.