1. Tardigrade
  2. Question
  3. Chemistry
  4. For the real gases reaction 2CO(g) + O2(g)→ 2C O2(g); Δ H = - 560 kJ. In a 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:

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Q. For the real gases reaction $2CO\left(g\right) + O_2\left(g\right)\to 2C O_2\left(g\right);$
$\Delta H = - 560 kJ.$ In a $10$ 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:

Thermodynamics

Solution:

At constant volume$\Delta H=\Delta U+V\Delta P$
$ -560= \Delta U+10 \times\left(-30\right)\times0.1\Delta U=-530kJ$