) Sulphur (v) dissociation constant of the indicator (f) Bleaching powder (vi) K2SO4. Al2(SO4)3.24 H2O (g) Kin (vii) (NH4)2 SO4.FeSO4.6H2O Define the following terms. (8 marks) (a) Electron affinity (b)

) Is work a vector or scalar? Define “energy”. A wooden sphere of mass 0.15 kg is thrown with a velocity of 30 ms-1 .Find the kinetic energy of the sphere. (4-marks ) (b) Define “work” . Write down the