Does Mercury have an exosphere?
Instead of an atmosphere, Mercury possesses a thin exosphere made up of atoms blasted off the surface by the solar wind and striking meteoroids. Mercury’s exosphere is composed mostly of oxygen, sodium, hydrogen, helium, and potassium.
How dense is the atmosphere of Mercury?
5.4 g/cm3
Period 88 days Eccentricity 0.206 Radius 2420 km Mass (earth units) 0.054 Mean density 5.4 g/cm3 Escape velocity 4.2 km/sec Temperature (subsolar point) 61 5°K The reason that people have always thought that the atmosphere would be very tenuous, if it existed at all, results from the fact that 269 270 The Origin and …
Can you breathe on Mercury?
Rough Surface – Mercury is a rocky planet, also known as a terrestrial planet. Mercury has a solid, cratered surface, much like the Earth’s moon. Can’t Breathe It – Mercury’s thin atmosphere, or exosphere, is composed mostly of oxygen (O2), sodium (Na), hydrogen (H2), helium (He), and potassium (K).
How dense is the exosphere?
The density of the exosphere is just a fraction of at sea level. And its mass is only 0.002% of the total mass of the atmosphere because gas molecules are far apart in the exosphere. Sound waves can’t travel through this layer of the atmosphere. If your body interacted with the exosphere, it would be freezing cold.
Why does Mercury have almost no atmosphere?
There are two primary factors: size and distance from the Sun. Also, if you are closer to the Sun, the atmosphere is hotter and the molecules are moving faster and so can reach escape velocity. This is why Mercury has no atmosphere, but much smaller and colder Pluto can still retain a thin atmosphere.
Why does Mercury have a thin atmosphere?
Mercury has an extremely thin atmosphere which is made up of atoms blasted off its surface by the Solar wind, a constant stream of particles coming from the outer layer of the Sun. Because Mercury is so hot, these atoms quickly escape into space.
Can we live in Earth?
A special planet: the habitable Earth What makes the Earth habitable? It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.
What is the density of the mesosphere?
The mesosphere is extremely cold, especially at its top, about −90 degrees C (−130 degrees F). The air in the mesosphere has extremely low density: 99.9 percent of the mass of the atmosphere is below the mesosphere.
What causes the exosphere to have a very low density?
The exosphere layer is mainly composed of extremely low densities of hydrogen, helium and several heavier molecules including nitrogen, oxygen and carbon dioxide closer to the exobase. The atoms and molecules are so far apart that they can travel hundreds of kilometers without colliding with one another.
What is the density of a cubic meter of mercury?
Mercury weighs 13.534 gram per cubic centimeter or 13 534 kilogram per cubic meter, i.e. density of mercury is equal to 13 534 kg/m³; at 25°C (77°F or 298.15K) at standard atmospheric pressure.In Imperial or US customary measurement system, the density is equal to 844.9 pound per cubic foot [lb/ft³], or 7.8231 ounce per cubic inch [oz/inch³] .
What are the properties of a liquid mercury?
Properties of saturated liquid Mercury – Hg – at atmospheric pressure – density, specific heat capacity, kinematic viscosity, thermal conductivity and Prandtls number: Mercury is a liquid heavy metal with toxic properties.
What is the specific heat capacity of mercury?
Mercury – Specific Heat Capacity. Specific heat of Mercury is 0.139 J/g K. When a given amount of heat is added to different substances, their temperatures increase by different amounts.
How big is a cubic foot of mercury?
In Imperial or US customary measurement system, the density is equal to 844.9 pound per cubic foot [lb/ft³], or 7.8231 ounce per cubic inch [oz/inch³] . Mercury is a metal which exists as a heavy silvery-white liquid at normal atmospheric conditions. Also known as: hydrargyrum ; quicksilver.
https://www.youtube.com/watch?v=vaEh2wt_gR8