I need full detailed solution please , with clear steps and clear solution

1. With the help of transition state theory, compare the rate constant for reaction A+B=x* in gaseous state and solution phase. 2. Describe an equation giving the effect of dielectric constant of the medium on rate constant and discuss the salient features of the equation. 3. Entropy decreases when reacting ions are of opposite sign, while it increases when reacting ions are of same sign. Explain