26. Two glass bulbs A and B are connected by a very small tube having a stop-cock. Bulb A has a volume of 100 cm and contained the gas; while bulb B was empty. On opening the stop- cock, the pressure fell down to 40%. The volume (in mL) of the bulb B must be : 27. The equilibrium constant Kp for a homogenous gaseous reaction is 10-3, the standard Gibb's free energy change (AG) in cal mol for the reaction at 27C (using R = 2 cal K- mol-) is Time required for complete decomposition of 4 mol of water using a current of 4 ampere is y 105 seconds. Value of y is? (Use F = 96500 Cmol-) 29. For a photochemical reaction AB, 1.010 mole of B were formed on absorbing 1.2 photons, quantum efficiency is: (NA = 6 1023) 30. The temperature coefficient of a reaction is 2. When the temperature is increased from 30C to 90C, the rate of reaction is increased by x times. Value of x is ?