Chemistry questions
29404 published questions with worked solutions.
- The overall rate of a reaction is governed by
- The study of the rate of chemical reaction and factors affecting its rate is known as ____________
- At a particular moment during the reaction, 2N_2O_5 4NO_2+O_2 in liquid bromine, N_2O_5 disappears at a rate of 0.03 M/s. What is...
- The concentration of a reactant decreases from 0.2 M to 0.1 M in 10 minutes. The rate of the reaction is _______
- When a reaction progresses, ________
- For a reaction, 2P 3Q , the rate of reaction (r) can be represented as __________
- For the reaction A+2B C , the rate of reaction at a given instant can be represented by ________
- For the reaction A+B+C Products , the term (-d[ C ]/dt) in rate equation refers to ________
- The rate of change in concentration of C in the reaction 2A+B 2C+3D was reported as 1.0 mol ,L^ -1 s^ -1 . Calculate the reaction...
- When concentration of reactant in reaction, A B is increased by 8 times, the rate increases only 2 times. The order of the...
- Hydrolysis of DDT is a first order reaction, its half life is 10 years. Time to hydrolyse 10 g DDT to half is _______
- During the course of a chemical reaction, the rate constant _________
- A 1^ st order reaction has specific rate constant of 2 min^ -1 . The half-life of this reaction will be __________
- The sum of the power to which the concentration of substance appears in the rate expression is known as _________
- The rate law for the reaction A+2B Products is: rate =k[ A ][ B ]^2. Rate of the reaction at 30^ is found to be 0.125 M/s, when [...
- If the order of the reaction x+y h xy is zero, it means that the rate of _______
- The rate of reaction, A+B+C Product is given by: rate =k[ A ]^ 1/2 [ B ]^ 1/3 [ C ]. The order of the reaction is _______
- The unit of rate constant in case of zero order reaction is _________
- Which equation is CORRECT for 1^ st order reaction?
- The rate of decomposition of acetaldehyde is given by: rate =9.0 10^ -5 [ CH_3CHO ]^2 mol ,L^ -1 s^ -1 . What is the...