Delta = 0 for all solids at 0 degree C. The two factors that determine if a reac

Question

Delta = 0 for all solids at 0 degree C. The two factors that determine if a reaction is spontaneous are temperature and entropy. An endothermic reaction with increasing entropy is never spontaneous. S>0 for a solid at 10 K. In the following galvanic cell. E = 0.920 V. The shorthand notation for the cell is written below in addition to the reduction potentials. Zn(s)Zn^2+ || Pt, S(s) H_2S (4,00)M (aq) the [H^+} = 6.89 times 10^-5 M (acidic) Zn^2+ + 2e- rightarrow Zn(s) -0.762 S(s) + 2H^+ 2e rightarrow H_2S(aq) 0.144 E = E degree -(0.0592/n)log Q What are the three laws of thermodynamics Two factors that speed up corrosion are and whereas two ways to prevent corrosion are and the use of

Explanation / Answer

10. Zeroth law of thermodynamics, if two systems are in thermal equilibrium with a third system,they are in thermal equilibrium with each other.

First law of thermodynamics when energy passes as work as heat or with matter into or out from a system the system internal energy Change in accord with the law of conservation of energy.

Second law of thermodynamics, in a natural thermodynamics process the sum of the entropies of the interacting system increases

Third law of thermodynamics, the entropy of a system approaches a constant value as the temperature approaches absolute zero.

11. Factors that speed up corrosion

1. Moisture

2.Acids

Factors that prevent corrosion

1.cathodic protection .

2.corrosion inhibitors

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