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What is reaction isotherm? Describe briefly.

Answer 1

The reaction isotherm is given by

#DeltabarG_(rxn) = DeltabarG_(rxn)^@ + RT ln ((Pi_(j) a_j^(nu_j))/(Pi_(i) a_i^(nu_i)))#,

where:

This is generally useful for determining #DeltabarG_(rxn)# at nonstandard temperatures.

It's also important that #DeltabarG_(rxn)^@# isn't necessarily at #"298.15 K"#, although it is usually convenient to specify that as the standard reference temperature because #DeltabarG_(rxn)^@# has been tabulated for many reactions at room temperature.

If you wish to derive this, I show it here.

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Answer 2

Avery Adams

A reaction isotherm is a graphical representation that illustrates how the rate of a chemical reaction changes with temperature while keeping the pressure constant. It shows the relationship between temperature and the rate of reaction, typically by plotting reaction rate against temperature. This graph helps in understanding how temperature influences the kinetics of a reaction and can provide insight into the activation energy and other thermodynamic parameters of the reaction.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.