What does a process require to be spontaneous at all temperatures? answer a catalyst and lower activation energy positive enthalpy and negative entropy changes a heat source and high activation energy negative enthalpy and positive entropy changes

negative enthalpy and positive entropy changes

Explanation:

= free energy change

= enthalpy change

T= temperature in Kelvin

= entropy change

, reaction is spontaneous

If

Thus reaction is spontaneous.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.