In The Colin Settings H Quiz che x CH15 HW Google Chrome session masteringchemis

Question

In The Colin Settings H Quiz che x CH15 HW Google Chrome session masteringchemistry.com/myct/itemview?assignementProblemID 796127o3soffsetanext eral Chemistry Spring 2017 Applying the Colision Model previous 123 of 3 plying the Collision Model Fraction of The exponential term in the Anterius equason is equal to the fraction of molecules f with kinetic energy greater the collision model is assumed that reactions the activation energy cur as a result of collisions between molecules h the conect kinetic energy and oientation The inimum energy required for a neaction to occur Most scintric calculators have function as the second function of the LN button hen molecules collide is called the activation nergy, E. The number at described by worabiv oiented for a reaction he A The elates both these factors to the rate constant, A eenain reaction with anactivation energy of 135 was nn at 455 K and again at 475 K what is the ratio of fat the higher temperature tofat the lower Memperature? Express your answer numerically using one significant figure. where R 8314 J/(mol-K) and Tis the 1.04 Hints MLAnswerts Gwee up Review Part Incorrect. Try Again: 2 attempts remaining

Explanation / Answer

Apply:

f1 = exp(-Ea1/(RT1))

f2 = exp(-Ea2/(RT2))

ratios

f1/f2 = exp(-Ea1/(RT1)) / exp(-Ea2/(RT2))

f1/f2 = exp(-135/(8.314*445)) / exp(-X/(8.314*475))

Substitute your value of Activation energy from A in "X"

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