The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0 oC to 560 oC, is given by the expression: Cp = 6.20 + 1.33 x 10-3 T + 6.78 x 104 T-2 Cal. deg.-1 g. atom.-1 What is the increase of entropy per g. atom, for an increase of temperature from 300 K to 800 K at 1 atm. pressure?
- The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0 oC to 560 oC, is given by the expression:
Cp = 6.20 + 1.33 x 10-3 T + 6.78 x 104 T-2 Cal. deg.-1 g. atom.-1
What is the increase of entropy per g. atom, for an increase of temperature from 300 K to 800 K at 1 atm. pressure?
2. Nitrogen trioxide dissociation according to the reaction.
When one mole of N2O3(g) is held at 25oC and 1 bar total pressure until equilibrium is reached, the extent of reaction is 0.30 what is ΔGo for this reaction at 25oC?
3 a) Why is not feasible in water? What would happen if we tried to make such a solution by mixing of KOH with
HCl?
b) Calculate the pH of a buffer that is 0.020 M in NH3 and 0.030 M in NH4Cl. What is the pH after adding 1.00 mL of 0.01 M NaOH to 0.10 L of this buffer?
[Ka for NH4+ if 5.70 x 10-10]
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