Question

Which of the following contains maximum no. of molecules?

• A. 200 cc of at S.T.P
• B. 150 cc of at S.T.P
• C. 50 cc of at S.T.
• D. 150 cc of at S.T.P

Answer 1

The correct option is A 200 cc of at S.T.P

200 cc of $N{H}_3$ at S.T.P contains---- molecules $\frac{(6.022\times {10}^{23}\times 200)}{22400}=0.0537\times {10}^{23}$ molecules
150 cc of $N_2$ at S.T.P and 150 cc of $O_2$ at S.T. ---- $\frac{(6.022\times {10}^{23}\times 150)}{22400}=0.0403\times {10}^{23}$ molecules
50 cc of $S{O}_2$ at S.T.P ----- $\frac{(6.022\times {10}^{23}\times 50)}{22400}=0.013\times {10}^{23}$ molecules