One of the factors that a large molecular cloud must overcome in order for gravitational contraction to begin is the thermal energy of the gas.

Question

Quizplus · Accepted Answer

The thermal energy of the gas within a molecular cloud opposes gravitational contraction by providing pressure support. The cloud must lose enough thermal energy (usually through radiation) for gravity to overcome this pressure and initiate contraction, leading to star formation.

One of the Factors That a Large Molecular Cloud Must