Answer Happy

15. Chuse the correct ERGY s temperature B. M Molecules the 1 and bland 19. What is at 25°C for the followers COCO.(a) a. 21 b. 45.9 217 B_20. Choose the incorrea statement Gases have less entropy than their solids Solutions have more entropy than the solids dissolved. c. Gases have more entropy than the liquids d. Liquids have more entropy than there solids. Entropy of a substance increases as its temperature increases. 21. Which of the following statements is true? Spontaneous processes proceed without outside intervention b. A spontaneous reaction is a fast reaction. c. Only exothermic processes are spontaneous. d. All the statements are true. B 22. Which of the following processes is non-spontaneous? a. Salt dissolves in water b. Photosynthesis occurs C. Ice cream melts on a hot summer day d. Hot soup gets cold before it's served 23. The change in free energy for a reaction: a. predicts speed c. equals heat b. equals AH-TAS d. depends on the standard state chosen 24. In a sealed container, the rate of dissolving is equal to the rate of crystallization would expect: d. N a. AS=0 b. AGO C. AG = 0 25. A reaction is spontaneous if 1) AG is a negative value. 11) Both enthalpy and entropy increase. III) AH is negative and AS is positive. IV) Both enthalpy and entropy decrease. V) AH is positive AS is negative. a. III and IV b. I and 111 c.land 11