The five characteristics of a Volcanic mountain are –

Eruption
Explosion
Expansion
Emulsification
Crater
when the mountain is in an active state, the temperature is extremely hot with temperature ranging from 600-1000 Celsius . But when the mountain is dominant, there no reactions taking place. The internal temperatures between the plates and rocks within the stratosphere layers of such mountains are not as hot to cause any explosions or eruptions.

What are the definition of the characteristics of a volcanic mountain?

Eruption: Occurs when a volcanic mountain becomes active and eject lava, ashes and chemical gases.

kilauea-lava-entering-the-sealava-flow-formation-of-magma-land-surface-in-hawaii

https://aerospaceastro.com/2016/11/10/what-are-the-characteristics-of-a-volcanic-mountain/