Question

write A if the statement is true or B if the statement is false for questions 36-40
36     Lowering the activation energy of a reaction will decrease its rate
37   A reaction that leads to a decrease in the free energy of the system is always non spontaneous
38.    Removal of gaseous product from an equilibrium reaction mixture shifts the equilibrium toward formation of more products.
39   Changing the temperature alters the value of equilibrium constant for a reaction.
40    . Catalyst, temperature, structure of molecules are some of the factors that affect the rate of reaction.

Answer 1

36.B

Lowering the activation energy will increase the rate constant so the rate of the reaction will also increase.

37.B

If free energy, i.e $\Delta$G is negative the process is spontaneous

38.A

Removal of gaseous product will lead to decrease in concentration of products.so the equilibrium will shift to form more products.

39.A

Equilibrium constant of a reaction changed if we change the temperature of the system

40.A

The factors that affect reaction rates are

1. temperature

2.absennce or presence of catalyst

3.nature of reactants

4.concentration and pressure and surface area of a reactant