Chemical Kinetics And Nuclear Chemistry

If compound A reacts with B following first order kinetics with rate constant \(2.011 \times 10^{-3} \mathrm{~s}^{-1}\). The time taken by \(\mathrm{A}\) (in seconds) to reduce from \(7 \mathrm{~g}\) to \(2 \mathrm{~g}\) will be ___________. (Nearest Integer)

\([\log 5=0.698, \log 7=0.845, \log 2=0.301]\)