During the day, the temperature of the sand in a desert rises as the sand is heated by the sun. after the sun sets, the sand cools. what happens to the heat energy in the sand as it cools?

Deserts are the regions that cover little or no vegetation and there is no rainfall. Deserts are very hot in the day time and cold during the night time. It is because during the day time the sun heats up the sand, as a result of which the sand becomes very hot increasing the temperature. This increasing temperature in the desert is also because of the absence of rainfall and vegetation cover.

Thus, the desert area is rich in heat energy during the day time. But at night, the sand releases its heat energy back into the atmosphere through infrared radiation because the dry air cannot hold the heat anymore. This release of the heat energy allows the sands to cool, thereby dropping the temperature.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

i do not get it   at all