Question

In the troposphere, temperature decreases with height at an average rate of 6.5°C/km. If temperature at 2.5 km altitude is 7.0°C, what is the temperature at 5.5 km altitude?

Answer 1

It should be about -12.5°C

Answer 2

Temperature at 5.5km altitude = -12.5 degrees centigrade

Step-by-step explanation:

Change of temperature per km = 6.5 degrees centigrade

Change in altitude = Final altitude – initial altitude

Change in altitude = 5.5 – 2.5 = 3km

Now,

Temperature at 5.5km altitude = 7 – (3*6.5) = -12.5 degrees centigrade

Negative sign has appeared because temperature is decreasing with the increase in altitude.