Question

Why do stars more massive than the sun have a higher surface temperature than the sun?.

Answer 1

Cause there bigger so they have a more hotter surface.

Answer 2

Stars that are more than 40 times more massive than our Sun, cannot expand into a red supergiant. This is because they burn too quickly and lose their outer layers fast. They will reach the blue supergiant stage, or perhaps yellow hypergiant, before returning to become hotter stars.

Step-by-step explanation: