Question

8. Indicate whether the following statements are true or false: a. If the free energy,AG,ofareaction is negative, then the entropy,AS,must be positive b. Anendergonicreactionisone forwhichAGispositive. c. Increasing the temperature usually increases the rate of a chemical reaction because it increases rate of movement of molecules d. A reaction that releases heat (ΔH) is termed exothermic, while a reaction that releases free energy, Δ G, is termed exergonic e. The transition state of a reaction is always at a higher (unfavorable) energy state than either the reactants or products

Answer 1

1. the first sattement is false, becasue for every positive entropy value there shouldn't be negative $\Delta$ G.

2. for endorgonic reaction $\Delta$ G = +VE. its true

3. Increasing the temperature increases the rate of reactions. it is true

4. its true for exothermic $\Delta$ H = -ve and $\Delta$ G is exergonic when free energy is released. so it is true

5. the transition state of a reaction is always at higher energy state then either reactants or products. Its true