Kinetics

c

a

a

for some reason, A is proportional to T^1/2

so on increasing T, A also increases and thus rate constant which here is equal to A, also increases

d

b

just use limits

a

Stable Al has no use here

Ans is b

by doing beta emission, it gets converted to Si 14 which is stable at 29 ( ithink)

AD

AC

specific activity is activity per unit mass

thus mass of U3O8 is 833

number of mols in 1 g is 1/833

thus no. of uranium is 1/277

in 1 g uranium, mols = 1/235

Thus, activity which is proportional to number of particles, is greater in U than U3O8

Decay constant however remains the same as its dependent on the NUCLEUS which remains unaffected by chemical rxns

1. b

2. d

3. a??

a

19.2

a

Its just integration you can do it

This is parallel rxn eqn

Thus when OH- = 0.01

k(sn1) = 5 k(sn2)

Thus sn2 forms 1/6th of the product

4

Ans is 3

e^0.7 = 2

c

b

d

convert the expression to the form

d(lnK)/dT = Ea/RT^2

on multiplying both sides by T^2, we get

Ea = R(40-600/T)

Put T= 300K and you get Ea = 38

a

pressure is only due to the released alpha particles

a

in v ilute, xa = na/nb

where a -> solute

b-> solvent

a

its just the weighted mean

E net = (E1k1 + E2k2)/k1+k2

it should be k1 = k2 RT^n-1

its just relations between kp and kc