For The reaction, X(s) 
Y(s) + Z(g). the plot of 
versus 
is given below (in solid line), where p z is the pressure (in bar) of the gas Z at temperature T and 
bar.
(Given, 
, where the equilibrium constant, 
and the gas constant. R = 8.314 J K -1 mol -1 )
(i) 
The value of standard enthalpy, 
(in kJ mol -l ) for the given reaction is___.
Text Solution
Verified by Experts166.28
(166.28)
X(s) 
Y(s) + Z(g)
also 
G° = -RT In k p
Now, 
G° = 
H° - T 
S°
…(1)
….(2)
Slope of the line 
= 2 x 8.314 x 10 -3 x 10 4 = 1.66.28 kJmol -1 K -1
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