What is meant by pseudo unimolecular reaction. Explain with an example.
0.0625g remains from 1g of a radioactive element after 20 years of radioactive decay. Determine the rate constant and half-line (t1/2) of the reaction. How much of the element did remain after 10 years from the start.

What is meant by pseudo unimolecular reaction? Explain with an example. 0.0625 g remains from 1 g of a radioactive element after 20 years of radioctive decay. Determine the rate constant and half-life (t_(1//2) of the reaction. How much of the element did remain after 10 years from the start?

0.0625g remains from 1g of a radioactive element after 20 years of radioactive decay. Determine the rate constant and half-life (t_(1//2)) of the reaction. How much of the element did remain after 10 years from the start?

Initial mass of a radioactive element is 1 g. If 0.25 g of the element remains intact after 6 min then determine the half-life of the element .

The half-life of a radioactive element is 3 min. If the initial mass of the element be 1 g then after what time 0.0625 g of the element remains intact?

The half-life of a radioactive element is 10 hours. How much will be left after 4 hours in 1g atom sample?

The half-life of a radioactive element is 2h. If its initial mass be 5 g., then determine the residual mass of the element after 10 h.

The rate of disintegration of a radioactive element at any instant is 10^3 dps. If the half-life of that element is 1 second, then what is its rate of disintegration after 1 second and after 3 second?

In a first order reaction , the amount of reactant decomposed in the first 1 min is 1 % of its initial amount. What percent of the reactant will remain undecomposed after 1 hour from the start of the reaction ?

The initial number of radioactive atoms in a radioactive sample is N_0 . If after time t the number of becomes N, then N=N_0e^(-lambdat) , where lambda is known as the decay constant of the element. The time in which the number of radioactive atoms becomes half of its initial number is called the half-life (T) of the element. The time in which the number of atoms falls to 1/e times of its initial number is the mean life (tau) of the element. The product lambdaN is the activity (A) of the radioactive sample when the number of atoms is N. The SI unit of activity is bequerel (Bq)' where 1 Bq = 1 decay. s^(-1) . The half-life of Iodine-131 is 8 d. What is the activity (in Bq) of 1 g of Iodine? (A) 2.3xx10^15 (B) 4.6xx10^15 (C) 6.9xx10^15 (D) 9.2xx10^15

The initial number of radioactive atoms in a radioactive sample is N_0 . If after time t the number of becomes N, then N=N_0e^(-lambdat) , where lambda is known as the decay constant of the element. The time in which the number of radioactive atoms becomes half of its initial number is called the half-life (T) of the element. The time in which the number of atoms falls to 1/e times of its initial number is the mean life (tau) of the element. The product lambdaN is the activity (A) of the radioactive sample when the number of atoms is N. The SI unit of activity is bequerel (Bq)' where 1 Bq = 1 decay. s^(-1) , The half-life of Iodine-131 is 8d. Its decay constant (in SI) is - (A) 10^(-6) (B) 1.45xx10^(-6) (C) 2xx10^(-6) (D) 2.9xx10^(-6)