One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 274
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Selection: Which of the following statements is correct? ( ) A. The number of branches in polymers decreases as temperature rises. B. During photoinitiation, an increase in temperature leads to a decrease in the average degree of polymerization. C. Under normal conditions, an increase in polymerization temperature results in an increase in the polymerization rate. D. When an initiator is used, an increase in temperature leads to an increase in the average degree of polymerization. C. Under normal conditions, an increase in polymerization temperature results in an increase in the polymerization rate
The correct statement is (D). A. The number of branches in polymers decreases as the temperature rises. B. During photo-initiated polymerization, an increase in temperature leads to a decrease in the average degree of polymerization. C. Under normal conditions, an increase in polymerization temperature results in an increase in the polymerization rate. D. When using an initiator for polymerization, an increase in temperature leads to an increase in the average degree of polymerization
C. Under normal conditions, as the polymerization temperature increases, the polymerization rate increases
The correct statement is (c)
Generally, as the polymerization temperature increases, the polymerization rate increases
C. Under normal conditions, as the polymerization temperature increases, the polymerization rate increases
C. Under normal conditions, as the polymerization temperature increases, the polymerization rate increases
C. Under normal conditions, as the polymerization temperature increases, the polymerization rate increases