Why do some substances melt instantly from solid to liquid (like water/ice) and other substances gradually transition (like magma, or metals)?

Question

How come there is no transition state in between something like ice and water like how there is between stone and lava. Is there actually some sort of viscous, in-between, water/ice that I just don’t know about?

In: Chemistry

Answer 1

I love these great questions……that took 7 years at university to understand…..and still dont truly understand lol. Thanks OP!