Classify each of the statements as true or false. True False Answer Bank The entropy of a substance increases when a liquid vaporizes to a gas at any temperature. Entropy decreases as the temperature increases. An exothermic reaction is always spontaneous. Product formation is always favored in a reaction with a negative AH° and a negative AS. For an endothermic reaction, a decrease in temperature results in a decrease in the equilibrium constant. A reaction will have an equilibrium constant...
1 mole of NO2(e) has a greater entropy than 1 mole of N204(g). True or false False O True
True or false: Solid trisilicon teranitride breaks down into solid silicon and nitrogen gas. The proper way to write and balance this equation is: Si3N4 (s) ----> 3Si (s) + 4N (g).
Its True or False 44. When this reaction is carried out at constant volume at room Tieu out at constant volume at room temperature with 1 mole of Din and sufficient oxygen, the reaction mixture gives off 1,516,000 joules of heat to its surroundings. 45. The entropy of a substance is greater as a liquid than as a solid. 46. The entropy of a substance is greater as a gas than as a liquid. 47. All reactions become more spontaneous...
Compare how entropy changes for the following two systems: System A: A gas and a solid react to form a new solid product. System B: Rubbing alcohol evaporates on the skin.
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
5. True/False: For a given transfer of energy, a greater change in entropy occurs when the temperature is high. False, because as temperature decreases there is a greater change in entropy. False, because only heat flow affects the change in entropy, not temperature. True
True or False: A reaction with an increase in entropy and AG<O will only occur when energetically coupled with an exergonic reaction.
True or false. At a constant temperature, lighter sized gas particles move faster than heavier sized gas particles.
20. Which of the following statements is FALSE? A. The entropy of the universe increases during spontaneous processes. B. During chemical and physical changes, energy is conserved. C. The entropy of H2O liquid is greater than the entropy of H2O solid at 0°C. D. The entropy of O2(g) should be greater than the entropy of CO2(g) when at the same temperature, E. The absolute entropy of a substance generally decreases when temperature decreases.