Calculate the half life of the first order reaction from their rate constant given as 100 s^(-1) (1) 100 s^(-1) (2) 6.93 xx 10^(-2)s (3) 0.693 xx 10^(-3)s (4) 6.93 xx 10^(-3) s (ii) Calculate the half life of the first order reaction from their rate constant given as 0.5 min^(-1) (1) 1.386 min, (2) 0.3465 min (3) 0.231 min, (4) 1.0395 min
383xx38xx3.8=?(a)5505.2(b)56305.4 (c) 57305.6 (d) 58305.8 (e) None of these
A sample of rock from the moon was found to contain the elements X and Y in 1:7 ratio by mole. Element is radioactive it decays to Y with half life of 6.93 xx 10^(9) years X to Y t_(1//2) = 6.93 xx 10^(9) yrs What is the age of the rock?
A to B, K_(1) = 0.693sec^(-1) C to D, K_(2) = 0.693 min^(-1) . If t_(1) & t_(2) are half lives of two reactions, then
