A helium sample occupies 1.50 L of space at 124.6 kPa. What pressure would the helium need to experience to have a volume of 0.75 L?

A. 130 kPa
B. 97 kPa
C. 250 kPa
D. 62 kPa

Answer : The correct option is, (C) 250 kPa

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

or,

where,

= initial pressure = 124.6 kPa

= final pressure = ?

= initial volume = 1.50 L

= final volume = 0.75 L

Now put all the given values in the above equation, we get:

Thus, the pressure of helium need to experience to have a volume of 0.75 L would be, 250 kPa

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.