a) Calculate the standard enthalpy of formation of A2B5 (g) using the following data, assuming standard states of A and B are diatomic gases: 2 A B ( g ) + B 2 ( g ) ⟶ 2 A B 2 ( g ) Δ r H ∘ = − 250 k J / m o l (equation 1) 4 A B 2 ( g ) + B 2 ( g ) ⟶ 2 A 2 B 5 ( g ) Δ r H ∘ = − 359 k J / m o l (equation 2) A 2 ( g ) + B 2 ( g ) ⟶ 2 A B ( g ) Δ r H ∘ = 208 k J / m o l (equation 3) b) How are the enthalpy and the internal energy related for the reaction shown in equation 3 part a, assuming ideal gas behavior of all species involved? Note that you are not required to calculate the internal energy, but you can do so if you wish.
a) Calculate the standard enthalpy of formation of A2B5 (g) using the following data, assuming standard states of A and B are diatomic gases: 2 A B ( g ) + B 2 ( g ) ⟶ 2 A B 2 ( g ) Δ r H ∘ = − 250 k J / m o l (equation 1) 4 A B 2 ( g ) + B 2 ( g ) ⟶ 2 A 2 B 5 ( g ) Δ r H ∘ = − 359 k J / m o l (equation 2) A 2 ( g ) + B 2 ( g ) ⟶ 2 A B ( g ) Δ r H ∘ = 208 k J / m o l (equation 3) b) How are the enthalpy and the internal energy related for the reaction shown in equation 3 part a, assuming ideal gas behavior of all species involved? Note that you are not required to calculate the internal energy, but you can do so if you wish.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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a) Calculate the standard enthalpy of formation of A2B5 (g) using the following data, assuming standard states of A and B are diatomic gases:
2 A B ( g ) + B 2 ( g ) ⟶ 2 A B 2 ( g ) Δ r H ∘ = − 250 k J / m o l (equation 1)
4 A B 2 ( g ) + B 2 ( g ) ⟶ 2 A 2 B 5 ( g ) Δ r H ∘ = − 359 k J / m o l (equation 2)
A 2 ( g ) + B 2 ( g ) ⟶ 2 A B ( g ) Δ r H ∘ = 208 k J / m o l (equation 3)
b) How are the enthalpy and the internal energy related for the reaction shown in equation 3 part a, assuming ideal gas behavior of all species involved? Note that you are not required to calculate the internal energy, but you can do so if you wish.
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