How did knowing the number of valence electrons in one of the alien elements help to identify it? Explain how the table was used
2 answers:
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Answer :
(a) The pressure inside the bottle just after it filled is 19.8 atm.
(b) The pressure inside the bottle as it opened in the 21.0°C is 11.8 atm.
Explanation :
<u>Part (a) :</u>
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 of gas = 1.01 atm
= final pressure of gas = ?
= initial volume of gas = 20.6 L
= final volume of gas = 1.05 L
Now put all the given values in the above equation, we get:
Therefore, the pressure inside the bottle just after it filled is 19.8 atm.
<u>Part (b) :</u>
Gay-Lussac's Law : It is defined as the pressure of the gas is directly proportional to the temperature of the gas at constant volume and number of moles.
or,
where,
= initial pressure of gas = 19.8 atm
= final pressure of gas = ?
= initial temperature of gas =
= final temperature of gas =
Now put all the given values in the above equation, we get:
Therefore, the pressure inside the bottle as it opened in the 21.0°C is 11.8 atm.