Acritical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis of adenosine triphosphate, atp, to adenosine diphosphate, adp, as described by the reaction atp(aq)+h2o(l)⟶adp(aq)+hpo2−4(aq) for which δ∘rxn=−30.5 kj/mol at 37.0 °c and ph 7.0. calculate the value of δ in a biological cell in which [atp]=5.0 mm, [adp]=0.50 mm, and [hpo2−4]=5.0 mm.

-50.09 kJ/mol

Explanation:

Let ΔGrxn be

ΔGrxn = ΔGrxn° + RT ln{[ADP][HPO₄²⁻]/[ATP]}

Given:

ΔGrxn = -30.5 × 10³

R = 8.314

T = 37°c = 310k

[ATP] = (5.0 × 10⁻³) M,

[ADP] = (0.50 × 10⁻³) M,

[HPO₄²⁻] = (5.0 × 10⁻³) M :

We have:

ΔGrxn

= (-30.5 × 10³) + (8.314) × (310) × ln{(0.50 × 10⁻³) × (5.0 × 10⁻³) / (5.0 × 10⁻³)} J/mol

= −50,090 J/mol

= -50.09 kJ/mol

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.