
(a)
Interpretation: The term ‘polystyrene’ needs to be defined and the reason of forming stronger polystyrene on addition of catalyst to form syndiotactic polystyrene needs to be explained.
Concept Introduction : Syndiotactic polystyrene (SPS) is
(b)
Interpretation: The reason of formation of stronger polymer on addition of 1,3-butadiene and sulphur needs to be explained.
Concept Introduction :
(c)
Interpretation: The reason of formation of stronger polymer on producing long chain of polystyrene needs to be explained.
Concept Introduction : Homopolymerization of styrene results a polymer whose name is Polystyrene.
(d)
Interpretation: The reason of formation of stronger polymer on addition of a catalyst to make linear polystyrene needs to be explained.
Concept Introduction:

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Chapter 21 Solutions
EBK CHEMICAL PRINCIPLES
- What is the stepwise mechanism for this reaction?arrow_forward32. Consider a two-state system in which the low energy level is 300 J mol 1 and the higher energy level is 800 J mol 1, and the temperature is 300 K. Find the population of each level. Hint: Pay attention to your units. A. What is the partition function for this system? B. What are the populations of each level? Now instead, consider a system with energy levels of 0 J mol C. Now what is the partition function? D. And what are the populations of the two levels? E. Finally, repeat the second calculation at 500 K. and 500 J mol 1 at 300 K. F. What do you notice about the populations as you increase the temperature? At what temperature would you expect the states to have equal populations?arrow_forward30. We will derive the forms of the molecular partition functions for atoms and molecules shortly in class, but the partition function that describes the translational and rotational motion of a homonuclear diatomic molecule is given by Itrans (V,T) = = 2πmkBT h² V grot (T) 4π²IKBT h² Where h is Planck's constant and I is molecular moment of inertia. The overall partition function is qmolec Qtrans qrot. Find the energy, enthalpy, entropy, and Helmholtz free energy for the translational and rotational modes of 1 mole of oxygen molecules and 1 mole of iodine molecules at 50 K and at 300 K and with a volume of 1 m³. Here is some useful data: Moment of inertia: I2 I 7.46 x 10- 45 kg m² 2 O2 I 1.91 x 101 -46 kg m²arrow_forward
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- Plleeaasseee solllveeee question 3 andd thankss sirr, don't solve it by AI plleeaasseee don't use AIarrow_forwardCalculate the chemical shifts in 13C and 1H NMR for 4-chloropropiophenone ? Write structure and label hydrogens and carbonsarrow_forwardPlease sirrr soollveee these parts pleaseeee and thank youuuuuarrow_forward
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