Abottle of liquid acetone is converted to a gas at 75.0 c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0 c, what is the total energy required for the conversion?

Process                                                          energy required

1) raise the temperature to 75.0 °C                628 J

2) evaporate the liquid at 75.0°C                    15.6 KJ = 15,600 J

3) raise the temperature to ?                           712 J

Total energy: 628 J + 15,600 J + 712 J = 16,940 J

As you must have realized the clue to do the problem correctly is to convert all the energy values to joules, because you cant not add up joules with kilo joules.

16,940 J

In reversible reaction chemistry equilibrium is attained when the forward and reverse reactions are taking place at the same rate, thus, the concentrations of reactants and products remain the same. a reversible reaction is a chemical reaction where the reactants form products that, in turn, react together to give the reactants back. in irreversible reactions on the other hand, the reactants react to form the products, which cannot revert back into reactants.

Burned piece of steel wool does not gain mass. so only d could be true.