Question

The caco3caco3 is heated in a closed vessel of volume 1 litre at 600 k to form cao and co2co2. The minimum weight of caco3caco3 required to establish the equilibrium caco3(s)cao(s)+co2(g)caco3(s)cao(s)+co2(g) is (kp=2.25atm)

Answer 1

Since delta n means change in concentration ofproducts-change in concentration of reactants therefore delta n =1-0=1we must consider only gases only

H - nRT = E 176000 - 1 * 8.314 * 1240 = E 165690.64 J =E 165.6 J