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1- Unit of exponantial Ea/RT in arrhenius equation and what is the unit of the arrhenius...

1- Unit of exponantial Ea/RT in arrhenius equation and what is the unit of the arrhenius equation ?

2- ficks law:

A) T gradient

B) Different characteristic

C) Both

D) None

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Answer #1

1- Unit of exponantial Ea/RT in arrhenius equation and what is the unit of the arrhenius equation ?

ANSWER: EXPONENTIAL Ea /RT DOES NOT HAVE ANY UNITS. UNIT OF THE ARRHENIUS EQUATION IS SAME AS RATE CONSTANT WHICH DEPENDS ON THE ORDER OF THE REACTION. E.G. FOR FIRST ORDER IT IS S-1.

EXPLANATION: UNIT OF Ea =J/MOL, UNIT FOR R= J/MOL.K, UNIT FOR T= K

THEREFORE, EXPONENTIAL Ea /RT WILL NOT HAVE ANY UNITS.

2- ficks law

IF IN THE QUESTION T GRADIENT= TEMPERATURE GRADIENT

ANSWER: D

EXPLANATION: FICK'S LAW STATES THAT SOLUTE WILL MOVE FROM REGION OF HIGHER CONCENTRATION TO THE REGION OF LOWER CONCENTRATION.

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