Solve this:
Q.3. For the reaction,
2 C O ( g ) + O 2 ( g )   2 C O 2 ( g )   ;   H = - 560   k J   m o l - 1
In one litre vessel at 500 K the initial pressure is 70 atm and after the reaction it becomes 40 atm at constant volume of one litre. Calculate change in internal energy. All the above gases show significant deviation from ideal behaviour. (1 Latm = 0.1 kJ)

 

IN THIS CASE 
WE USE
DELTA H=DELTA U+ DELTA ng RT
-56=DELTA U +(-1*0.0821*500)
WE GET DELTA U=15

 


 

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