Chemical Equilibrium

For an isomerisation reaction A \(\rightleftharpoons\) B, the temperature dependence of equilibrium constant is given by
loge K = 4.0 \(-\) \(\frac{2000}{T}\)
The value of \(\Delta\)S\(^\circ\) at Hook is, therefore

What is [NH\(_{4}^+\)] in a solution that is 0.02 M NH3 0.01 M KOH ? [Kb(NH3) = 1.8 \(\times\) 10\(-\)5]

Sulphuric acid is a dibasic acid. It ionises in two stages and hence has two dissociation constants Ka1 and Ka2. Which of the following is the correct observation regarding Ka1 and Ka2 ?

1.1 mole of A mixed with 2.2 moles of B and the mixture is kept in a 1 L flask and the equilibrium, A + 2B \(\rightleftharpoons\) 2C + D is reached. If at equilibrium 0.2 mole of C is formed then the value of Kc will be