BaCl, · H,O(s) loses water when it is heated in an oven: BaCl, · H,O(s) = BaCl, (s) + H,O(g) AH° = 63.11 kJ/mol at 25 °C AS° = +148 J/(K · mol) at 25 °C Write the equilibrium constant for this reaction. Find the vapor pressure of H,O (PH,0) above BaCl, · H,O(s) at 298 K. PH,0 = bar If AH° and AS° are not temperature dependent (a poor assumption), estimate the temperature at which PH,0 above BaCl, · H,O(s) will be 1 bar. T = °C

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BaCl, · H,O(s) loses water when it is heated in an oven:
BaCl, · H,O(s) = BaCl, (s) + H,O(g)
AH° = 63.11 kJ/mol at 25 °C
AS
+148 J/(K · mol) at 25 °C
Write the equilibrium constant for this reaction. Find the vapor pressure of H,O (PH,0) above BaCl, · H,O(s) at 298 K.
PH,0
bar
=
If AH° and AS° are not temperature dependent (a poor assumption), estimate the temperature at which PH,0 above
BaCl, · H, O(s) will be 1 bar.
T =
°C
Transcribed Image Text:BaCl, · H,O(s) loses water when it is heated in an oven: BaCl, · H,O(s) = BaCl, (s) + H,O(g) AH° = 63.11 kJ/mol at 25 °C AS +148 J/(K · mol) at 25 °C Write the equilibrium constant for this reaction. Find the vapor pressure of H,O (PH,0) above BaCl, · H,O(s) at 298 K. PH,0 bar = If AH° and AS° are not temperature dependent (a poor assumption), estimate the temperature at which PH,0 above BaCl, · H, O(s) will be 1 bar. T = °C
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