Inversion temperature Ti=2aRb is defined as the temperature above which if gas is expanded adiabatically it gets warm up but if temperature of gas is lower than T, then it will cool down. What will happen to a gas if it is adiabatically expanded at 600 K if its Boyle's temperature is 290 K?

1.  Heating

2.  Cooling

3.  Constant

4.  None

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