NEST2012ChemistryChemical Kinetics
A reaction A + B C , follows first order kinetics with respect to each reactant, with an overall rate constant, k=2.0 10⁻³ M ⁻¹ ~s ⁻¹ . The initial concentrations of A and B are 0.10 M and 6.93 M , respectively. Given 2=0.693 , choose the correct statement(s).
Options
- AThe concentration of A remaining after 100 seconds is approximately 2.5 10⁻² M .
- BThe concentration of B remaining after 100 seconds is approximately 1.73 M .
- CThe half-life for A is about 50 seconds.
- DThe half-life for B is about 50 seconds.
Correct answer
C. The half-life for A is about 50 seconds.
Step-by-step solution
No solution available.