The molecular weight of $${O_2}$$ and $$S{O_2}$$ are 32 and 64 respectively. At $${15^ \circ }C$$ and $$150\,mmHg$$ pressure, $$1L$$ of $${O_2}$$ contains $$'N’$$ molecules. The number of molecules in $$2L$$ of $$S{O_2}$$ under the same conditions of temperature and pressure will be
A.
$$\frac{N}{2}$$
B.
$$N$$
C.
$$2\,N$$
D.
$$4\,N$$
Answer :
$$2\,N$$
Solution :
According to Avogadro's law “equal volumes of all gases contain equal number of molecules under similar conditions of temperature and pressure.” Thus, if $$1\,L$$ of one gas contains $$N$$ molecules, $$2\,L$$ of any gas under similar conditions will contain $$2\,N$$ molecules.
Releted MCQ Question on Physical Chemistry >> Some Basic Concepts in Chemistry
Releted Question 1
$$27 g$$ of $$Al$$ will react completely with how many grams of oxygen?