A) 16 min.
B) 24 min.
C) 8 min.
D) 4 min.
Correct Answer: A
Solution :
\[k=\frac{2.303}{t}\log \left( \frac{a}{a-x} \right)\] \[k=\frac{2.303}{32}\log \left( \frac{100}{100-75} \right)\] .? (i) \[k=\frac{2.303}{t}\log \left( \frac{100}{100-50} \right)\] ?.(ii) from the two equation (i) and (ii), \[t=16\]minutes.You need to login to perform this action.
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