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  3. Chemistry
  4. At T(K) if the rate constant for a zero order reaction is 2.5 × 10-3 ms-1 . the time required for the initial concentration of reactant. R to fall from 0.10 M to 0.075 M at the same temperature in seconds is

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Q. At $T(K)$ if the rate constant for a zero order reaction is $2.5 \times 10^{-3} ms^{-1}$ . the time required for the initial concentration of reactant. R to fall from $0.10\, M$ to $0.075\, M$ at the same temperature in seconds is

AP EAMCETAP EAMCET 2018

Solution:

$t =\frac{\left[R_{0}\right]-[R]_{E}}{K} \, t=\frac{0.1-0.075}{2.5 \times 10^{-3}}$

$=\frac{0.025}{2.5 \times 10^{-3}} t=0.01 \times 10^{3}=10\, s$