Chemistry questions
29404 published questions with worked solutions.
- For effective collisions, colliding molecules must have
- Consider the reaction 2NO(g) + O_2(g) 2NO_2(g) . If d[ NO_2 ] dt =0.052 M/s then - d[ O_2 ] dt will be
- The rate constant of a reaction
- The activation energy for a hypothetical reaction A Product is 12.49 kcal/mol. If temperature is raised from 295 to 305 K, the...
- For a first order reaction, the half life is independent of
- The Arrhenius equation is
- The half life of a first order reaction is 30 min and the initial concentration of the reactant is 0.1 M. If the initial...
- If the concentration is expressed in mole per litre and time in second, the units of rate constant for a first order reaction is
- Which one of the following formula represents a first order reaction?
- The rate of a chemical reaction can be expressed in terms of
- The Rate Law for the reaction RCl + NaOH(aq) ROH + NaCl is given by Rate =k[ RCl ]. The rate of reaction will be
- Half life (t_ 1/2 ) of first order reaction is
- The specific rate constant of a first order reaction depends on
- For a zero order reaction
- Rate expression of a chemical change is - dx dt =k[ A ]^2[ B ][ C ]^0. The order of reaction is
- In the reaction A + 3B 2C , the rate of formation of C is
- A zero order reaction is one
- The integral rate equation for first order reaction A products is given by
- The rate constant of a reaction
- The rate of a reaction can be increased in general by all the following factors except