Mt rainier is about 4km above sea level. if temperature at sea level is 60 degree fahrenheit, what is the temperature in fahrenheit at the top of the mountain assuming moist adiabatic lapse rate?

24 degrees Fahrenheit.

Explanation:

The moist adiabatic rate is related to the variation of the temperature as the altitude increases.

A typical value is around 9ºF/km. This means that for each km, the temperature decreases 9ºF.

In this problem, we have that:

The temperature at the ground level is 60 degrees Fahrenheit.

So 4km above sea level it is going to be 60 - 4*9 = 24 degrees Fahrenheit.