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11 Nov 2019
Please answer and explain!
Enthalpy CHsOH (1) -393.5 k ê·¸ 1273.3 k CO2 (g) CSH1206 (s a) Rearrange and combine the ì¨ equations given above in order to determine the ì¨1° for the overall fermentation reaction. This is the same method you have been using for other Hess's Law problems. kl/mol b) As you worked with Hess's Law in part a, you had to reverse reactions (changing the sign oAHP) and multiply through some reactions by a constant (multiplying the ÎHo value by the same constant) in order to get the correct overall stoichiometry. Given a table of AH values, you can do the same calculation using the following formula: AHorxn [Žn AHf° for products] [En-AH for reactants] Notice that multiplying each Î.fo value times n (the number of moles in the balanced equation) and subtracting products minus reactants (changes the sign of values on the reactant side just like reversing the reaction) results in exactly the same manipulations you did using Hess's Law Use the Î+4° formula Just given to calculate the AHo for the alcohol fermentation reaction. Aro k)
Please answer and explain!
Enthalpy CHsOH (1) -393.5 k ê·¸ 1273.3 k CO2 (g) CSH1206 (s a) Rearrange and combine the ì¨ equations given above in order to determine the ì¨1° for the overall fermentation reaction. This is the same method you have been using for other Hess's Law problems. kl/mol b) As you worked with Hess's Law in part a, you had to reverse reactions (changing the sign oAHP) and multiply through some reactions by a constant (multiplying the ÎHo value by the same constant) in order to get the correct overall stoichiometry. Given a table of AH values, you can do the same calculation using the following formula: AHorxn [Žn AHf° for products] [En-AH for reactants] Notice that multiplying each Î.fo value times n (the number of moles in the balanced equation) and subtracting products minus reactants (changes the sign of values on the reactant side just like reversing the reaction) results in exactly the same manipulations you did using Hess's Law Use the Î+4° formula Just given to calculate the AHo for the alcohol fermentation reaction. Aro k)
Jamar FerryLv2
4 Feb 2019