Answer
Verified
421.8k+ views
Hint: NTP stands for normal temperature and pressure. At normal temperature and pressure, any gas with one mole has a volume of $22.4$ litres. The number of moles is given mass divided by the molecular mass.
Complete step by step answer:
We have been given the volume of gas at normal temperature and pressure (NTP). It says that the pressure of the gas is one atm. We will find the number of moles of gas and then the molecular weight says which gas satisfies the given conditions.
Now any gas that has a volume of $22.4$ litres has a quantity of one mole. So it can be concluded that $5.6$ litres of the gas would have $\dfrac{{5.6 \times 1}}{{22.4}} = 0.25$ moles.
So the amount of gas present will be $0.25$ moles. Further, we know that the number of moles of the gas is equal to the given weight of the gas divided by the molecular weight of the gas.
So the number of moles $ = \dfrac{m}{W}$
Here the number of moles is $0.25$ and the weight of the gas given is $11$ gram. Putting these values in the given equation we get as follows
$0.25 = \dfrac{{11}}{W}$
$W = \dfrac{{11}}{{0.25}} = 44$ gram
When we calculate the molecular mass of nitrous oxide ${N_2}O$ the molecular weight comes out to be $44\;gmo{l^{ - 1}}$
Here molecular weights of $P{H_3},COC{l_2},NO$ are $34,98,28\;gmo{l^{ - 1}}$ respectively.
Hence the gas is nitrous oxide( ${N_2}O$)
So, the correct answer is Option D.
Note: The pressure is considered to be one atm, not one bar if one mole of a gas occupies $22.4$ L at NTP. Standard conditions of temperature and pressure are often used to define the standard reference conditions to express volumes of liquids and gases. Also, nitrous oxide is called laughing gas.
Complete step by step answer:
We have been given the volume of gas at normal temperature and pressure (NTP). It says that the pressure of the gas is one atm. We will find the number of moles of gas and then the molecular weight says which gas satisfies the given conditions.
Now any gas that has a volume of $22.4$ litres has a quantity of one mole. So it can be concluded that $5.6$ litres of the gas would have $\dfrac{{5.6 \times 1}}{{22.4}} = 0.25$ moles.
So the amount of gas present will be $0.25$ moles. Further, we know that the number of moles of the gas is equal to the given weight of the gas divided by the molecular weight of the gas.
So the number of moles $ = \dfrac{m}{W}$
Here the number of moles is $0.25$ and the weight of the gas given is $11$ gram. Putting these values in the given equation we get as follows
$0.25 = \dfrac{{11}}{W}$
$W = \dfrac{{11}}{{0.25}} = 44$ gram
When we calculate the molecular mass of nitrous oxide ${N_2}O$ the molecular weight comes out to be $44\;gmo{l^{ - 1}}$
Here molecular weights of $P{H_3},COC{l_2},NO$ are $34,98,28\;gmo{l^{ - 1}}$ respectively.
Hence the gas is nitrous oxide( ${N_2}O$)
So, the correct answer is Option D.
Note: The pressure is considered to be one atm, not one bar if one mole of a gas occupies $22.4$ L at NTP. Standard conditions of temperature and pressure are often used to define the standard reference conditions to express volumes of liquids and gases. Also, nitrous oxide is called laughing gas.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you graph the function fx 4x class 9 maths CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE