273 K और 1 atm दाब पर एक आदर्श गैस का एक मोल, ______ लीटर का आयतन घेरता है।

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SSC CGL 2021 Tier-I (Held On : 19 April 2022 Shift 3)
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  1. 22.4
  2. 25.1
  3. 21.2
  4. 20.3

Answer (Detailed Solution Below)

Option 1 : 22.4
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Detailed Solution

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सही उत्तर 22.4 लीटर है।Key Points

  • मानक तापमान और दबाव (STP) पर किसी भी गैस के एक मोल का आयतन 22.4 लीटर होता है।
  • मानक तापमान 0°C (273.15 K) है और मानक दबाव 1 atm है।

Important Points

अवोगाद्रो की परिकल्पना में कहा गया है कि:

  • समान ताप और दाब पर, किसी भी गैस के समान आयतन में, कणों की संख्या समान होती है।

आदर्श गैस समीकरण है:

  • PV = nRT
  • n = मोलों की संख्या
  • R = गैस स्थिरांक

R के लिए SI मान 8.31441 J K-1 mol-1 है।

कारक चर इकाइयां 
दाब
P
atm,
Torr,
Pa,
या 
mmHg.
आयतन
V
L या m³
मोल
n
mol
तापमान
T
K
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