What factors determine the rate of loss of gases from a planet's atmosphere?
What will be an ideal response?
A low escape velocity makes it easier for rapidly moving gas molecules to escape into space. Another factor is the temperature of a planet. On colder planets, the gas molecules in its atmosphere travel more slowly and cannot easily escape. Also, an ozone layer protects the atmosphere from ultraviolet radiation. The ultraviolet photons can break atmospheric molecules up into smaller fragments, which escape more easily. For example, water can be broken up into hydrogen and oxygen.
You might also like to view...
How much net work is required to accelerate a 1000kg car from 20m/s to 30m/s.
What will be an ideal response?
Kepler's third law allows us to find the average distance to a planet from observing its period of rotation on its axis
Indicate whether the statement is true or false
If steam is used as a cleaning agent for removing caffeine attached to the sides of 2-cmdiameter tubes in a coffee processing plant, estimate the time to remove 1 mm of caffeine from the inside of the tubes if steam at 120ºC, 1 atm pressure, is forced through the tubes at 10 m/s. Assume the diffusivity of caffeine into steam is 6 x 10^-6 m^2/s and a density of 800 kg/m^3 for caffeine.
What will be an ideal response?
The observed distribution of matter in the Universe is best understood as being caused by ____
a. clumping of dark matter in the early Universe causing clumping of normal matter b. clumping of normal matter in the early Universe causing clumping of dark matter c. simultaneous clumping of normal and dark matter d. large variations in the intensity of the cosmic microwave background e. homogenous expansion of normal and dark matter