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At room temperature (20°C) milk turns sour in about 64 h. In a refrigerator at 3°C milk can stored three times as long before it sours. How long should it take milk to sour at 40°C.
Dear student, Given K (293)/K(276) = 3T2 = 293 K, T1 = 276 K 2.303 log (K2/K1) = Ea(T2 -T1)/R* (T1)(T2)On solvingEa = 10.454 Kcal Also2.303 log(K3/K2) = Ea (T3-T2)/2* (T3)(T2)Where T3 = 313 K Now on solvingK3 = 3.12 K3/K2 = t2/t3Where t2 = 64 Hr., We have to find t3Nowt3 = 64*1/3.12 = 20.5 hr RegardsArun (askIITians forum expert)
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