Question

The stars that last longest are the stars

A) with the largest luminosity and highest temperature since they take the longest to cool down to invisibility.
B) with the largest mass, that is, the largest amount of fuel.
C) with the smallest mass.
D) of intermediate mass; small-mass stars have little fuel and burn out quickly, while very massive stars burn their fuel very rapidly.

Answer 1

Stars with the largest luminosity and highest temperature last longest as they take the longest to cool down to invisibility. This is because massive stars have the most gravity and can compress their centers to generate energy from nuclear reactions effectively, making them shine the brightest. In contrast, low-mass stars generate less energy and have cooler surface temperatures.

Step-by-step explanation:

The stars that last longest are the stars with the largest luminosity and highest temperature since they take the longest to cool down to invisibility. The most massive stars have the most gravity, which allows them to compress their centers to the greatest degree. As a result, they are the hottest inside and the best at generating energy from nuclear reactions. They shine with the greatest luminosity and have the hottest surface temperatures. On the other hand, low-mass stars are cooler inside and less effective in generating energy, making them the least luminous and coolest on the surface. Stars of intermediate mass have enough fuel to burn for a longer time compared to small-mass stars and very massive stars.