Question

The numerical value of N/n (where N is the number of molecules in a given sample of the gas and n isme
number of moles of the gas) is
(1) 8.314
(2) 1.66 × 10-19
(3) 6.023 x 1023
(4) 0.082​

Answer 1

Answer:

The correct answer is option 3.

Explanation:

The numerical value of N/n , where:

N = The number of molecules in a given sample

n = number moles

Suppose, we are having x mol of gas.

n = x mol

According to mole concept , 1 mole = $N_A=6.022\times 10^{23}$ molecules or atoms

Number of molecules in x moles of gas ,N=$x\times 6.022\times 10^{23}$

The value of N/n is:

$\frac{x\times 6.022\times 10^{23}}{x}= 6.022\times 10^{23}$

Hence, the correct answer is option 3.

Answer 2

Answer:

(3) is correct answer

Explanation:

total number of molecules in 1 mole= 6.022×10^23