Question

For the real gases reaction,
`2CO(g)+O_(2)(g)to2CO_(2)(g),DeltaH=-560 kJ.` In 10 litre rigid vessel at 500 K the initial pressure is 70 bar and after the reaction it becomes 40 bar. The change in internal energy is :
A. `-557 kJ`
B. `-530 kJ`
C. `-563 kJ`
D. None of these

Answer 1

Correct Answer - B
At constant volume `DeltaH = DeltaU + V DeltaP`
`implies -560 =DeltaU+10xx(-30)xx0.1`
`DeltaU=-530 " kJ"`