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 × 10³° kg, radius of the Sun = 7.0 × 10^8 m.
Actual Density of the Sun= Volume Mass = 3 4 π×(7×10 8 ) 3 m 3 2×10 30 kg =1.4×10 3 kgm −3
