KEAM 2012 Physics and Chemistry Paper

In the reaction: A2(g)+2B2(g)→2AB3(g)
the standard entropies (in JK−1‌mol−1) of A2(g),B2(g) and AB3(g) are respectively 190, 130 and 195 and the standard enthalpy change for the reaction is -95 kJ mol−1. Thetemperature (in K) at which the reaction attains equilibrium is(assuming both the standard entropy change and standard enthalpy change for this reaction are constant over a wide range of temperature)