What is spontaneities?

Spontaneity is the way do things withut thinking about it. Such as breathing. When you were just breathing a second ago did u tell yourself in, out, in, out, in, out, in, out? I'm positive you...

The English word 'spontaneity' means the quality of being spontaneous and coming from natural feelings without constraint

She was bored by his lack of spontaneity.

Increasing the temperature makes a reaction spontaneous in some situations.

If H and S have the same sign, the temperature will determine spontaneity.