Combination reaction also called synthesis reaction, the product will always be a compound.
For example:
A + B -> AB
C2 + O2 -> CO2
H2+Cl2 -> HCl
Answer:
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Answer : The value of
across the membrane is 6.80 kJ/mol
Explanation :
The relation between the equilibrium constant and standard Gibbs free energy is:

where,
= standard Gibbs free energy = ?
R = gas constant = 8.314 J/K.mol
T = temperature = 
= equilibrium constant
= concentration inside the cell = 
= concentration outside the cell = 
Now put all the given values in the above formula, we get:



Thus, the value of
across the membrane is 6.80 kJ/mol
(3) the forward reaction rate is equal to the reverse reaction rate
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