Chemical Kinetics

A newly prepared radioactive nuclide has a decay constant of 6.93 s\(^{-1}\). What is the half-life of the nuclide?

For the reaction 2N\(_2\)O\(_5\) \(\to\) 4NO\(_2\) + O\(_2\), rate constant \(k\) is 4.48 \(\times\) 10\(^{-5}\) s\(^{-1}\) and the initial pressure is 600 atm. After 10 min, determine the final pressure of N\(_2\)O\(_5\).

Rate constant (K) of a reaction has least value at

Determine the specific rate constant of the reaction. If the half-life period of a first order reaction is 1402 s.

Which one of the following is a second order
reaction?