The temperature of the air is 26 ∘c at sea level, use the average lapse rate to calculate the expected temperature at the top of a 6000-meter mountain.

-13° C

Explanation:

Data provided:

The temperature of the air at sea level = 26° C

The height at which temperature is to be calculated = 6000 m = 6 Km

Now,

Using the average lapse rate

Here,

is the temperature at the height 'h' above the mean sea level

is the temperature at the mean sea level

is the average lapse rate = 6.5° C per Km

h is the height above mean sea level at which the temperature is to be calculated in Km

on susbtituting the respective values in the above formula, we get

= 26° C - ( 6.5 × 6 )

or

= 26° C - 39° C

or

= -13° C