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51. Solving a chemistry problem
Content: 8.rar 50,58 kB
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8. Calculate for the system in which the reaction takes place:
1. According to the Hess law using tabular data, the heat effect of the reaction at p = const and T = 298 K (ΔH298).
2. The value of the thermal effect of the reaction at the same temperature and at V = const (ΔU298).
3. Change in the entropy of the system at T = 298 K (ΔS298).
4. Change in the Gibbs energy of the system at T = 298 K (ΔG298).
5. Change in the Helmholtz energy of the system at T = 298 K (ΔF298).
6. The equilibrium constant of the reaction at T = 298 K and draw a conclusion about the completeness of the reaction.
7. According to the reaction isotherm equation, the change in the Gibbs energy under given conditions and draw a conclusion about the direction of the process.
The atmosphere consists only of the gases involved in the reaction. The total pressure is 1 atm. In the presence of one reacting gas, the rest is Ar.
Reaction: 2Cr(t)+3H2O(t)=Cr2O3(t)+3H2(g)
Gas phase composition: %H2O=10-3
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