The Sun is a hot plasma (ionized matter) with its inner core at a temperature exceeding 10 7 K, and its outer surface at a temperature of about 6000 K. At these high temperatures, no substance remains in a solid or liquid phase. In what range do you expect the mass density of the Sun to be, in the range of densities of solids and liquids or gases? Check if your guess is correct from the following data: mass of the Sun = 2.0 ×10 30 kg, radius of the Sun = 7.0 × 10 8 m.

Question

Philoid · Accepted Answer

Given,

Mass of the sun, M = 2.0 × 10³⁰ kg

Radius of the sun, R = 7.0 × 10⁸ m

Volume of the sun, V = (4/3)πR³

⇒ V = (4/3) × 3.14 × (7.0 × 10⁸ m)³

⇒ V = 1.436 × 10²⁷ m³

Density of the sun,

⇒

⇒ ρ = 1.39 × 10³ kg m^-3

This value corresponds to the range of solids and liquids.