If the activation energy of a reaction is 80.9 kJ mol^$$-$$1, the fraction of molecules at 700 K, having enough energy to react to form
products is e^$$-$$x. The value of x is __________. (Rounded off to the nearest integer) [Use R = 8.31 J K^$$-$$1 mol^$$-$$1]

In mildly alkaline medium, thiosulphate ion is oxidized by $$MnO_4^ - $$ to "A". The oxidation state of sulphur in "A" is __________.

The average S-F bond energy in kJ mol^$$-$$1 of SF₆ is _____________. (Rounded off to the nearest integer)

[Given : The values of standard enthalpy of formation of SF₆(g), S(g) and F(g) are - 1100, 275 and 80 kJ mol^$$-$$1 respectively.]

Emf of the following cell at 298K in V is x $$\times$$ 10^$$-$$2.

Zn|Zn²⁺(0.1 M)||Ag⁺ (0.01 M)|Ag

The value of x is _________. (Rounded off to the nearest integer)

[Given : $$E_{Z{n^{2 + }}/Zn}^\theta = - 0.76V;E_{A{g^{2 + }}/Ag}^\theta = + 0.80V;{{2.303RT} \over F} = 0.059$$]