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2 years ago

Which value of gas constant (R)use and when ?in ideal gas equation.

Chemistry

2 answers:

Ad libitum [116K]2 years ago

5 0

Answer:

value of R=0.0821atm,mol-¹k-¹

kiruha [24]2 years ago

4 0

Answer:

R is universal gas constant

It is has fixed value which would depend upon the units in which P,V and T expressed in the equation PV=nRT

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3 years ago

A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis o

MAVERICK [17]

Answer : The value of $\Delta G_{rxn}$ is -49.6 kJ/mol

Explanation :

First we have to calculate the reaction quotient.

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given balanced chemical reaction is,

$ATP(aq)+H_2O(l)\rightarrow ADP(aq)+HPO_4^{2-}(aq)$

The expression for reaction quotient will be :

$Q=\frac{[ADP][HPO_4^{2-}]}{[ATP]}$

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Given:

$[ATP]$ = 5.0 mM

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$[HPO_4^{2-}]$ = 5.0 mM

Now put all the given values in this expression, we get

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Now we have to calculate the value of $\Delta G_{rxn}$ .

The formula used for $\Delta G_{rxn}$ is:

$\Delta G_{rxn}=\Delta G^o+RT\ln Q$ ............(1)

where,

$\Delta G_{rxn}$ = Gibbs free energy for the reaction = ?

$\Delta G_^o$ = standard Gibbs free energy = -30.5 kJ/mol

R = gas constant = $8.314\times 10^{-3}kJ/mole.K$

T = temperature = $37.0^oC=273+37.0=310K$

Q = reaction quotient = $0.60\times 10^{-3}$

Now put all the given values in the above formula 1, we get:

$\Delta G_{rxn}=(-30.5kJ/mol)+[(8.314\times 10^{-3}kJ/mole.K)\times (310K)\times \ln (0.60\times 10^{-3})$

$\Delta G_{rxn}=-49.6kJ/mol$

Therefore, the value of $\Delta G_{rxn}$ is -49.6 kJ/mol

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3 years ago

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3 years ago

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Answer: asteroids and moon, planet, star, solar system, galaxy, universe.

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3 years ago

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2 years ago

Which value of gas constant (R)use and when ?in ideal gas equation. ​

Which value of gas constant (R)use and when ?in ideal gas equation.