
How many moles of will react completely with gas at and ?
(A)
(B)
(C)
(D)
Answer
446.7k+ views
Hint: For this kind of question we will first have to write balanced equation through which we will get a relation between two quantities of molecules , after that by using basic chemistry formula in which we can use known quantities and find out unknown or required quantity and then by putting the value we got in the previous relation we got through reaction we will get the answer.
Complete step by step solution:
To understand the question better, we will first write down the reaction which is taking place;
The above equation is balanced and from that we know of corresponds to of
Now, for calculation of moles of reacting with , we will first calculate the number of moles of gas.
By using basic ideal gas law;
Where pressure
volume
number of moles
gas constant
temperature
Now we want to know number of moles every thing is already given and we know
And as we know one mole of gas corresponds to two moles of
Moles of
Therefore, 1.50 moles of will react completely with gas at and . So, Option (C) is correct.
Note:
The gas constant which we have used in the above example is defined as the product of volume and pressure. It is an important physical constant used in many fundamental equations. We can express it in many ways with different unit systems.
Complete step by step solution:
To understand the question better, we will first write down the reaction which is taking place;
The above equation is balanced and from that we know
Now, for calculation of moles of
By using basic ideal gas law;
Where
Now we want to know number of moles every thing is already given and we know
And as we know one mole of
Moles of
Therefore, 1.50 moles of
Note:
The gas constant which we have used in the above example is defined as the product of volume and pressure. It is an important physical constant used in many fundamental equations. We can express it in many ways with different unit systems.
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