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During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L?
Most Upvoted Answer
During the electrolysis of water 4 mol of electrons were transferred f...
Here results should be rememberd that-
1..for evolution of 1 mole (22.4L)O2 at anode due to electrolysis of H2O needs 4 mole of electrons or 4 F
2..for evolution of 1 mole (22.4L) H2 at cathode due to electrolysis of H2O needs 2 mole of electrons or 2 F.
now apply this
As in ques 4 mole of electrons is passing hence,
vol. of O2 evolved at anode = 22.4L
vol. of H2 evolved at cathode =2 ×22.4 L
total vol of gas evolved = 44.8 + 22.4 = 67.2 L
hope u will do problems like this in your mind..
1..for evolution of 1 mole (22.4L)O2 at anode due to electrolysis of H2O needs 4 mole of electrons or 4 F
2..for evolution of 1 mole (22.4L) H2 at cathode due to electrolysis of H2O needs 2 mole of electrons or 2 F.
now apply this
As in ques 4 mole of electrons is passing hence,
vol. of O2 evolved at anode = 22.4L
vol. of H2 evolved at cathode =2 ×22.4 L
total vol of gas evolved = 44.8 + 22.4 = 67.2 L
hope u will do problems like this in your mind..
Community Answer
During the electrolysis of water 4 mol of electrons were transferred f...
Answer:
Explanation:
During the electrolysis of water, the reaction at the anode is:
2H2O → O2 + 4H+ + 4e-
The reaction at the cathode is:
4H+ + 4e- → 2H2
It is given that 4 mol of electrons were transferred from anode to cathode. This means that 4 mol of hydrogen gas will be produced at the cathode.
2H2O → O2 + 2H2
From the above equation, we can see that for every 2 mol of hydrogen gas produced, 1 mol of oxygen gas will also be produced. Therefore, 2 mol of oxygen gas will be produced at the anode.
Now, we need to calculate the volume of gases produced at STP. STP stands for Standard Temperature and Pressure, which is defined as 0°C and 1 atm pressure.
1 mole of any gas at STP occupies a volume of 22.4 L.
Therefore, the volume of hydrogen gas produced at STP will be:
4 mol H2 x 22.4 L/mol = 89.6 L
The volume of oxygen gas produced at STP will be:
2 mol O2 x 22.4 L/mol = 44.8 L
Hence, the total volume of gases produced at STP will be:
89.6 L + 44.8 L = 134.4 L
However, we need to remember that the question asks for the approximate volume of gases produced. Therefore, we can round off the answer to the nearest integer, which is:
134 L
Therefore, the correct option is D) 89.4 L.
Explanation:
During the electrolysis of water, the reaction at the anode is:
2H2O → O2 + 4H+ + 4e-
The reaction at the cathode is:
4H+ + 4e- → 2H2
It is given that 4 mol of electrons were transferred from anode to cathode. This means that 4 mol of hydrogen gas will be produced at the cathode.
2H2O → O2 + 2H2
From the above equation, we can see that for every 2 mol of hydrogen gas produced, 1 mol of oxygen gas will also be produced. Therefore, 2 mol of oxygen gas will be produced at the anode.
Now, we need to calculate the volume of gases produced at STP. STP stands for Standard Temperature and Pressure, which is defined as 0°C and 1 atm pressure.
1 mole of any gas at STP occupies a volume of 22.4 L.
Therefore, the volume of hydrogen gas produced at STP will be:
4 mol H2 x 22.4 L/mol = 89.6 L
The volume of oxygen gas produced at STP will be:
2 mol O2 x 22.4 L/mol = 44.8 L
Hence, the total volume of gases produced at STP will be:
89.6 L + 44.8 L = 134.4 L
However, we need to remember that the question asks for the approximate volume of gases produced. Therefore, we can round off the answer to the nearest integer, which is:
134 L
Therefore, the correct option is D) 89.4 L.
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During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L?
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During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L?.
During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for During the electrolysis of water 4 mol of electrons were transferred from anode to cathode. The total volume of gases produced at STP will b approximately A) 67.2L B) 22.4L C) 44.8L D) 89.4L?.
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