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The molecular weight of O2 and SO2 are respectively 32 and 64 . At 15 degree calcius and 150 mm Hg pressure, one litre of O2 contains 'N' molecules. The number of molecules in two litres of SO2 under the same conditions of temperature and pressure will be : (a) N/2 (b)N (c)2N (d)4N Correct answer is c Can anyone explain it.?
Most Upvoted Answer
The molecular weight of O2 and SO2 are respectively 32 and 64 . At 15 ...
T=5
P=759mm
volume of o2=1L
no. of molecules of o2=n1=N
no. of molecules of so2=n2=?

by formula....
v1/n1=v2/n2... avragadra's law
1/N=2/n2
so, n2=2n


hence ur required ans is option c
Community Answer
The molecular weight of O2 and SO2 are respectively 32 and 64 . At 15 ...
**Explanation:**

**1. Calculation of the number of molecules in one liter of O2:**

To calculate the number of molecules in one liter of O2, we need to use the ideal gas equation:

PV = nRT

Where:
P = pressure (150 mm Hg)
V = volume (1 liter)
n = number of moles
R = ideal gas constant (0.0821 L atm/mol K)
T = temperature (15 degrees Celsius or 288 Kelvin)

Rearranging the equation to solve for n:

n = PV / RT

Substituting the given values:

n = (150 mm Hg * 1 liter) / (0.0821 L atm/mol K * 288 K)

Converting mm Hg to atm (1 atm = 760 mm Hg):

n = (150/760 atm * 1 liter) / (0.0821 L atm/mol K * 288 K)

Simplifying:

n ≈ 0.021 moles

Since one mole of any gas contains Avogadro's number of molecules (6.022 x 10^23), we can calculate the number of molecules in one liter of O2:

N = n * Avogadro's number

N ≈ 0.021 * 6.022 x 10^23

N ≈ 1.265 x 10^22 molecules

**2. Calculation of the number of molecules in two liters of SO2:**

Since the molecular weight of SO2 is double that of O2, we can infer that two liters of SO2 will contain twice the number of molecules as one liter of O2.

Therefore, the number of molecules in two liters of SO2 under the same conditions of temperature and pressure will be 2N.

Hence, the correct answer is (c) 2N.
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The molecular weight of O2 and SO2 are respectively 32 and 64 . At 15 degree calcius and 150 mm Hg pressure, one litre of O2 contains 'N' molecules. The number of molecules in two litres of SO2 under the same conditions of temperature and pressure will be : (a) N/2 (b)N (c)2N (d)4N Correct answer is c Can anyone explain it.?
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The molecular weight of O2 and SO2 are respectively 32 and 64 . At 15 degree calcius and 150 mm Hg pressure, one litre of O2 contains 'N' molecules. The number of molecules in two litres of SO2 under the same conditions of temperature and pressure will be : (a) N/2 (b)N (c)2N (d)4N Correct answer is c Can anyone explain it.? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The molecular weight of O2 and SO2 are respectively 32 and 64 . At 15 degree calcius and 150 mm Hg pressure, one litre of O2 contains 'N' molecules. The number of molecules in two litres of SO2 under the same conditions of temperature and pressure will be : (a) N/2 (b)N (c)2N (d)4N Correct answer is c Can anyone explain it.? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The molecular weight of O2 and SO2 are respectively 32 and 64 . At 15 degree calcius and 150 mm Hg pressure, one litre of O2 contains 'N' molecules. The number of molecules in two litres of SO2 under the same conditions of temperature and pressure will be : (a) N/2 (b)N (c)2N (d)4N Correct answer is c Can anyone explain it.?.
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