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4 years ago

What is the melting point of water?

Chemistry

1 answer:

wlad13 [49]4 years ago

5 0

That depends. In Celsius, its 0 degrees. In Farenheight, its 32 defrees. In Kelvin, its 273.15 Kelvin.

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2 years ago

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3 years ago

In the citric acid cycle, malate is dehydrogenated to oxaloacetate in a highly endergonic reaction with a ΔG’o of +30 kJ mol-1:

Doss [256]

Answer : The value of $K_{eq}$ of this reaction is, $5.51\times 10^{-6}$

At equilibrium, [L-malate] > [oxaloacetate]

Explanation :

The relation between the equilibrium constant and standard Gibbs free energy is:

$\Delta G^o=-RT\times \ln K_{eq}$

where,

$\Delta G^o$ = standard Gibbs free energy = +30 kJ/mol = +30000 J/mol

R = gas constant = 8.314 J/K.mol

T = temperature = $25^oC=273+25=298K$

$K_{eq}$ = equilibrium constant = ?

The given reaction is:

$\text{L-malate}+NAD^+\rightleftharpoons \text{oxaloacetate}+NADH+H^+$

$\Delta G^o=-RT\times \ln K_{eq}$

$+30000J/mol=-(8.314J/K.mol)\times (298K)\times \ln K_{eq}$

$K_{eq}=5.51\times 10^{-6}$

Therefore, the value of $K_{eq}$ of this reaction is, $5.51\times 10^{-6}$

As, the value of $K_{eq}$ < 1 that means the reaction mixture contains reactants.

At equilibrium, [L-malate] > [oxaloacetate]

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4 years ago

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