A balloon contains 3300 mL of helium gas at 63 °C. What is the final volume, in milliliters, of the gas when the temperature changes to each of the following, if pressure and amount of gas do not change? Part A 78 C Express your answer to two significant figures and include the appropriate units. UA Vi= Value Units

The final volume : 3.4 L

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

V₁=3300 ml

T₁=63 + 273=336 K

T₂=78+273=351 K

the final volume :

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.