Answer to Question #67818 in Physical Chemistry for rahina

Question #67818

Question 19 : A statement of the second law of thermodynamics is that
energy is conserved in a chemical reaction.
the entropy of the universe is continually increasing.
the enthalpy of reaction is the difference between product and reactant enthalpies.
spontaneous reactions are always exothermic.

Question 20 : The temperature remains constant as energy is added to a substance. How may the substance be changing?
From a gas to a solid
Change in the amoung of kinetic energy
From a liquid to a gas
From a liquid to a solid

Expert's answer

Question 19: the entropy of the universe is continually increasing.
Question 20: From a liquid to a gas