Question

Problem 7.13: During the summer, daytime temperatures are type cally around 30°C both in the east central United States and over the high deserts in the west. In the first case, a typical relative humidity is 70%, while in the second, it may be as low as 10%. a) Find the corresponding dewpoints. Answer: 297.2 K (eastern U.S.) b) Find the expected altitude in meters of the base of any con- vective clouds that develop from surface heating. Answer: 741 m (eastern U.S.)

Answer 1

The dew point is the temperature to which air must be cooled to become saturated with water vapours.

And formula used for above question is

T_(dew)=T-{(100-RH)/5}

Where RH is the relative humidity.

Now substitute the values of all the terms

a>>>

1---->>>. =30-{100-70/5} = 24 in degree celcius

2---->>>. =30-{100-10/5}= -15 in degree celcius

Sorry bro i don't have any idea of 2nd question