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Thermodynamics

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Wize University Chemistry Textbook > Thermodynamics Part 2: (2nd Law-entropy, 3rd Law, Gibbs Free Energy, Spontaneity)

3rd Law of Thermodynamics

2 Activities

Indicate the FALSE statement about the laws of thermodynamics:
More 3rd Law of Thermodynamics Questions:
The Haber Bosch Process is an industrial process for “fixing” nitrogen, shown below. This process produces around 500 million tons of ammonia every year.
ΔfG0(NH3)=−16.4 kJ/mol\Delta_fG^0(NH_3)=-16.4\ kJ/mol
3/2 H2(g)+1/2 N2(g)→NH3(g)\rm 3/2\ H_{2(g)}\quad+\quad 1/2\ N_{2(g)}\quad\overrightarrow{\hspace{1.5cm}}\quad NH_{3(g)}
Entropy
Calculate the standard molar entropy change for the combustion of methane (J/mol K).
CH4 (g) + 2 O2 (g) →\rightarrow CO2 (g) + 2 H2O (g)
Thermodynamics
Which of the following statements disagrees with the laws of thermodynamics?
Thermodynamics
The Solubility Constant for AgI(s) at 25oC is 8.3x10-17. What is ΔG(rxn) given that the current concentrations of ions are: [Ag+]=9.1x10-9 & [I-]=9.1x10-9
1)Write the variables we know/trying to solve for
2) Out of the different equations for deltaG, which one should we use?