On the sunlit surface of Venus, the atmospheric pressure is 9.0 106 Pa, and the temperature is 740 K. On the earth's surface the
atmospheric pressure is 1.0 105 Pa, while the surface temperature can reach 320 K. These data imply that Venus has a "thicker" atmosphere at its surface than does the earth, which means that the number of molecules per unit volume (N/V) is greater on the surface of Venus than on the earth. Find the ratio (N/V)Venus / (N/V)Earth.
2 answers:
Answer:
(1) Venus
(2) Earth
Explanation:
Ideal Gas Equation which relates these quantities of thermodynamics is.
where P is pressure, V is volume , N is number of molecules, R is ideal Gas Constant and has value of 8.3144621J/Mol*K.
Rearranging the above equation, by first solving for N in terms of P, V, R and T and then dividing by V gives us.
Now it is only matter of Plugging in numbers so for Venus planet we can plug in P = 9.0106Pa, T = 740K R is constant in every situation = 8.3144621J/mol K. and get (1) and similarly for Earth we will plug in P = 1.0105Pa , T = 320K and same R, and will get (2).
You might be interested in
Answer:
Explanation:
The elastic potential energy of a spring is given by , where
is the spring constant of the spring and
is displacement from point of equilibrium.
When released, this potential energy will be converted into kinetic energy. Kinetic energy is given by , where
is the mass of the object and
is the object's velocity.
Thus, we have:
Substituting given values, we get: