# What is the dry adiabatic lapse rate on Venus?

###### Wiki User

###### 2008-03-14 00:47:03

The dry adiabatic lapse rate (La)* on Venus is about 10.47K/km,

and is similar to that of Earth. This is because the La is governed

*specific heat* (Cp) of the atmospheric gasses and the

planet's gravity (g). Specific heat (Cp) is the amount of heat

energy in Joules required to raise the temperature of 1 kg of

substance by 1 Kelvin. The equation is quite simple. La = g/Cp For

Earth: Cp = 1.004 J/kg/K, g = 9.8 m/s2 Earth La = 9.76 K/km For

Venus: Cp = 0.85 J/kg/K, g = 8.9 m/s2 Venus La = 10.47 K/km For

Mars: Cp = 0.83 J/kg/K, g = 3.7 m/s2 Mars La = 4.50 K/km

http://pds-atmospheres.nmsu.edu/education_and_outreach/encyclopedia/adiabatic_lapse_rate.htm

The symbol for lapse rate is actually an upside-down L, but I don't

know how to do scientific symbols on this browser.