Chemistry questions
29404 published questions with worked solutions.
- Molecularity of an elementary reaction can be _________
- The order of reaction that takes place in one step (elementary) reaction _______
- The overall rate of reaction is governed by the _________
- The pre-exponential factor in the Arrhenius equation of a first order reaction has the units _________
- Activation energy of any reaction depends on _______
- In a chemical reaction, the number of collisions depend upon ________
- According to the collision theory of chemical reactions, ________
- The minimum energy a molecule should possess in order to enter into a fruitful collision is known as _______ energy
- In a reaction, the threshold energy is equal to ________
- The calculation of the pre-exponential factor is based on the _________
- Velocity constant ‘k’ of a reaction is affected by ________
- Activation energy is given by the formula ______
- According to collision theory of reaction rate, the rate increases with the increase in temperature because ______
- A chemical reaction was carried out at 300 K and 280 K. The rate constants were found to be k_1 and k_2 respectively. Then...
- For a zero order reaction, __________
- Which of the following aspect is NOT dealt by chemical kinetics?
- Pieces of wood burn faster than a log of wood of the same mass because ________
- For a chemical reaction _______ can never be a fraction
- A catalyst increases the rate of reaction as it _______
- For a first order reaction, k=0.693 hr^ -1 . The half life of the reaction is _______