Spontaneously example sentences

These and many other spontaneously occurring changes show unidirectional change.They move less spontaneously or make odd grimaces and gestures.In fact, all naturally occurring processes whether chemical or physical will tend to proceed spontaneously in one direction only.But heat will not flow from colder body to warmer body on its own, the gas in a container will not spontaneously contract into one corner or carbon dioxide will not form carbon and dioxygen spontaneously.If it is not, the system would spontaneously change to configureuration of lower free energy.We may ask 'what is the driving force of spontaneously occurring changes ? What determines the direction of a spontaneous change ? In this section, we shall establish some criterion for these processes whether these will take place or not.