Explanation: The result of equilibrium condition is felt on degree of polymerization, chain length distribution and also on the conversion of monomer to polymer.

Explanation: The shifting of equilibrium takes place in reverse reaction as the propagation reaction is exothermic. Initially the effect of reverse reaction rate constant, kdp is not felt, but it increases progressively with higher temperatures and at a critical temperature, the overall polymerization reduces to zero.

Explanation: When the temperature is initially increased from a low level, rate increases due to gain in the value of kp. Initially the effect of reverse reaction rate constant, kdp is not felt, but it increases progressively with higher temperatures and at a critical temperature, the rate of propagation is equal to rate of de-propagation and the overall polymerization reduces to zero.

Explanation: If both ∆Hᵒ and ∆Sᵒ are negative, then the critical temperature is called the ceiling temperature, above which it is thermodynamically impossible to convert monomer to polymer.

Explanation: If both ∆Hᵒ and ∆Sᵒ are positive, then the critical temperature is called the floor temperature, below which it is thermodynamically impossible to convert monomer to polymer.

Explanation: Tetrahydrofuran shows a ceiling temperature of 70ᵒC above which its polymerization does not take place.

Explanation: The viscosity of molten sulphur passes through minimum at approximately 160ᵒC and the rises sharply. The hemolytic cleavage of S8 ring yield diradical and gives rise to free radical polymerization of further heating.

Explanation: Tc is affected by the conditions affecting monomer concentration, the heat of polymerization and the reaction medium.

Explanation: The intersection point of the given curves in the plot of kdp and kp[M] against the temperature, gives the value of ceiling temperature, at which the rate of polymerization is zero.