In a certain binary solution, the activity of component 1 is given by

R * ln(alpha_1) = R * ln(x_1) + A(x_2)^2 + B(x_2)^3

Where x_1 and x_2 are the respective mole fractions and A and B are constants. Derive an expression for alpha_2 (the activity of component 2) given that the equation above is valid over the entire concentration range. (Your answer should be in terms of R, A, B x_1, and x_2). A useful form of the Gibbs-Duhem Equation is

X1 * d * ln(alpha_1) + (x_2) * d * ln(alpha_2) = 0

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In the case of a two component system X1 + X2 = 1 such that
dx1/dx2 = d(1-x2)/dx2 = -1

now d(ln a1) = partial(lna1/wrx1) dx1 + partial( lna1)wrx2)dx2

The standard Gibbs free energy of formation of NH3(g) is given by ∆Gfo=-16.5 kj/mol-1 at T=298K.
What is the Gibbs free energy (∆G) for the reaction: N2(g) + 3H2 ↔ 2NH3(g) when the partial pressures are: PN2=3.0 bar; PH2=1.0 bar; and PNH3=4.0 bar?

For the reaction:
H2 + C2H4 -> C2H6
In gaseous phase, the pre-exponential factor is 1.24*10^6 [M-1s-1] and the activation energy is 180 kJ/mol. find the entropy, the enthalpy and the gibbs free energy.
see attachment

The Gibbs Baby Food Company wishes to compare the weight gain of infants using their brand versus their competitor's. A sample of 40 babies using the Gibbs products revealed a mean weight gain of 7.6 pounds in the first three months after birth. The standard deviation of the sample was 2.3 pounds. A sample of 55 babies using the

Focus Question: Consider a sample of CaO(s) at 298K and 1 atm. Does the Gibbs energy of the sample increase, decrease of remain the same if the temperature is raised to 350K? Does the Gibbs energy of the original sample increase, decrease of remain the same if the pressure is increased to 2 atm?
Important formula
1. For a co

1. Firstly, how do you calculate the molar solubility of AgBr when given 0.1 M AgBr at 25 degrees C (Ksp = 5 x 10^-3)?
If show me a few examples of how to calculate molar solubility when you're given different things, I would appreciate it.
2. Next, how can I calculate the squilibrium direction of CO2 at 25 degrees C and 9

The Gibbs Baby Food Company wishes to compare the weight gain of infants using their brand versus their competitor's. A sample of 40 babies using the Gibbs products revealed a mean weight of gain of 7.6 pounds in the first three months after birth. The standard deviation of the sample was 2.3 pounds. A sample of 55 babies using

Gibbs Baby Food Company wishes to compare the weight gain of infants using its brand versus its competitor's. A sample of 40 babies using the Gibbs products revealed a mean weight gain of 7.6 pounds in the first three months after birth. For the Gibbs brand the population standard deviation of the sample is 2.3 pounds. A sample

Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the reaction
2 NH3(g) + CO2(g) → NH2CONH2(aq) + H2O(l)
Given that delta G^o = -13.6 kJ, calculate delta G at 25 oC for the following sets of conditions.
(a) 10 atm NH3, 10 atm CO2, 1.0 M NH2CONH2
(b) 0.1 atm NH3, 0.1 atm CO2, 1.0 M NH2CON