An arctic weather balloon is filled with 12.1l of helium gas inside a prep shed. the temperature inside the shed is 9.°c. the balloon is then taken outside, where the temperature is −7.°c. calculate the new volume of the balloon. you may assume the pressure on the balloon stays constant at exactly 1atm. round your answer to 3 significant digits.

Answer : The new or final volume of gas will be, 11.4 L

Explanation :

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

or,

where,

= initial volume of gas = 12.1 L

= final volume of gas = ?

= initial temperature of gas =

= final temperature of gas =

Now put all the given values in the above formula, we get the final volume of the gas.

Therefore, the new or final volume of gas will be, 11.4 L

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.