Answer :
Final answer:
The gas in the solar nebula began at a temperature of about 5000 K.
Explanation:
The temperature of the gas in the solar nebula began at a temperature of around 5000 K (option 2), which is indicated by the way materials condense in the solar nebula. This is consistent with our understanding of the solar system formation from a cloud of vapor and dust. As the nebula collapsed under its own gravity, temperatures in the center increased, vaporizing the solid material that was initially present.
