MCQ
Every gas (real gas) behaves as an ideal gas
- ✓At high temperature and low pressure
- BAt low temperature and high pressure
- CAt normal temperature and pressure
- DNone of the above
✓
Answer
Correct option: A.
At high temperature and low pressure
a
Real gas obeys vanderwaals equation
Real gas obeys vanderwaals equation
$\left( p +\frac{ n ^{2} a }{ V ^{2}}\right)( V - nb )= nRT$
at high temperature and low pressure
Van der waal equation becomes approximately $PV = nRT$
Hence gases behave ideally at high temperature and low pressure.
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