1 一藥物溶液(120 mg/mL)以零階次(zero order)動力學降解,反應速率常數為 1.0 mg/mL/hr,經過2 天後,藥物濃度為何?
(A) 48 mg/mL
(B) 72 mg/mL
(C) 122 mg/mL
(D) 168 mg/mL
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統計: A(67), B(3010), C(61), D(9), E(0) #413456
統計: A(67), B(3010), C(61), D(9), E(0) #413456
詳解 (共 3 筆)
#891940
Ct=C0-kt Ct=120-1*48=72mg/mL
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#5112404
Zero order 零級反應
C = C0 - kt
t1/2 = 0.5D0 / k
First order 一級反應
C = C0e-kt t1/2 = 0.693 / k
1
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#5729885
120-2x24 = 72
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0