saplinglearning.com Thermodynamics- Chemper pring18-BOUCHER: HW 11 Jump to... Ma

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saplinglearning.com Thermodynamics- Chemper pring18-BOUCHER: HW 11 Jump to... Ma Sapling Learning For the aqueous reaction CH2OH H2 Hz dihydroxyacetone phosphateglyceraldehyde-3-phosphate the standard change in Gibbs free energy is G" # 7.53 kJmol. Calculate G for this reaction at 298 K when [dihydroxyacetone phosphate)0.100 M and [glyceraldehyde-3-phosphate] 0.00100 M. The constant R 8.3145 J/(K: mol) Number kJ/ mol Hint Previous ? Give Up & View Solution e Check Answer Next?Exi_ about us careers privacy policy terms of use contact us help 0888 F6 F2 F1O

Explanation / Answer

We will use, ?G = ?G° + RT ln Q

?G = ?G° + RT ln ([Glyceraldehyde 3 phosphate] / [dihydroxyacetone phosphate ] )

Using gas constant R in KJ/mol units i. e R = 0.008314 kJ/(K mol)
?G = 7.53 + 0.008314 x 298 ln (0.00100 / 0.100)
= 7.53 + 0.008314 x 298 ln(.01)
= 7.53 + (-11.41)
= - 3.88 kJ/mol

Thank you

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