The value `K_(c)` of a reaction has a higher value at higher temperature. The reaction is exothermic in nature.

At higher temperature, iodoform reaction is given by:

Assertion (A) : The value of K for a reaction may increase or decrease with increase in temperature depending upon whether the reaction is exothermic or endothermic. Reason (R) : With increase in temperature, the extent of reaction increases.

The rate of an exothermic reactions increases with increase in temperature.

Why are reactions of higher order less in number?

Assertion (A): The endothermic reactions are favoured at lower temperature and the exothermic reactions are favoured at higher temperature. Reason (R ) : when a system in equilibrium is disturbed by changing the temperature, it will tend to adjust itself so as to overcome the effect of the change.

For an exothermic reaction

Which of the following reactions takes place at higher temperature range (900 K-1500 K) in blast furnace ?

A : Rate constant increases with temperature. R : Rate of exothermic reaction increases with temperature.

Assertions: In an exothermic reaction ,a greater yield of products can be obtained by lowering the temperature. Reason: In an exothermic reactions , the heat constant of reactants is greater than that of the products.