Answer : The pressure become doubles.
Explanation :
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
= final pressure
= initial temperature
= final temperature =
Now put all the given values in the above equation, we get:
From this we conclude that, as the temperature of gas doubles then the pressure of gas become doubles because pressure is directly proportional to the temperature of gas.
Hence, the pressure become doubles.
Answer : The initial quantity of sodium metal used is 17.25 grams.
Solution : Given,
Volume of gas = 8.40 L
Molar mass of Na metal = 23 g/mole
The Net balanced chemical reaction is,
At STP, 22.4 L of volume is occupied by 1 mole of gas
so, 8.40 L of volume is occupied by = = 0.375 moles of gas
Now from the above reaction, we conclude that
1 mole of gas produced by the 2 moles of Na metal
0.375 moles of gas produced = of Na metal
The quantity of Na metal used = Moles of Na metal × Molar mass of Na metal = 0.75 moles × 23 g/mole = 17.25 grams
Therefore, the initial quantity of sodium metal used is 17.25 grams.
Answer:
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Tectonic plates, specifically divergent plates, are constantly creating new crust on the surface, pushing the older crust away. Additionally, the mantle has convection cycles that makes hot magma rise, further leading to the crust constantly moving because of that warm lava force.