(a) What is the physical significance of energy of activation ? Explain with diagram.(b) In general, it is observed that the rate of a chemical reaction doubles with every 10 degree rise in temperature. If the generalization holds good for the reaction in the temperature range of 295 K to 305 K, what would be the value of activation energy for this reaction ?[R = 8.314 J mol-1 K-1]

Hemoglobin in our blood exist in two predominant forms.one form,known as oxyhemoglobin, has oxygen bound to the iron and the other,known as deoxyhemoglobin has water molecule bound instead.Oxyhemoglobin is a low spin complex that gives arterial blood its red colour, and deoxyhemoglobin is a high spin complex that gives venus blood its darker colour.Explain these observations in terms of the crystal field splitting.

How much heat in joules must be added to 0.894 kg of beryllium to change it from a solid at 932°C to a liquid at 1285°C (its melting point)? For beryllium: L₁ = 1.35×106 J/kg, Lv = 3.24×10 J/kg, c = 1820 J/kg C° Q =

Find the average binding energy per nucleon of 2 Mo and 82 Kr. (For the atomic masses, see this table. Enter your answers to at least two decimal places.) 42 36 (a) 92 Mo 42 MeV/nucleon 82 (b) Kr 36 MeV/nucleon