Why does the temperature of a gas decrease when it is allowed to expand adiabatically?

Why does the rate of a reaction increase with rise in temperature?

Inversion temperature (T_(i)=(2a)/(Rb)) 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_(i) then it will cool down. What will happen to gas if it is adiabatically expanded at 50^(@)C if its Boyle's temperature is 20^(@)C

Why does the conductivity of a solution decrease with dilution?

Two identical samples of a gas are allowed to expand isothermally,adiabatically.Work done is:

Calculate the final temperature of a monoatomic idal gas that is compressed reversible and adiabatically from 16L to 2L at 300 K :

Why does the rate of photosynthesis decrease at higher temperatures?

Why the rate of physical adsorption decreases with the rise of temperature ?

Calculate the external work done when an ideal gas is expanded adiabatically.