Which of the following best describes the Ideal Gas Law?
Which of the following best describes the Ideal Gas Law?
निम्नलिखित में से कौन – सा विकल्प आदर्श गैस नियम का सबसे अच्छा वर्णन करता हैं?
Detailed Solution & Logic
The pressure (P), volume (V), and temperature (T) of a given amount of gas are related by the equation PV/T = constant./गैस की एक निश्चित मात्रा का दाब (P), आयतन (V)और तापमान (T) समीकरण 'PV/T = स्थिरांक द्वारा संबंधित होते हैं।
📝 Explanation (English)
The Ideal Gas Law combines Boyle’s Law, Charles’s Law, and Gay-Lussac’s Law into a single relationship.
It states that for a fixed amount of gas, the ratio PV/T remains constant.
This relationship is commonly written as PV = nRT, where n is the number of moles and R is the universal gas constant.
📝 व्याख्या (Hindi)
आदर्श गैस नियम (Ideal Gas Law), बॉयल का नियम, चार्ल्स का नियम और गे-ल्यूसैक का नियम को मिलाकर बनाया गया है।
यह बताता है कि गैस की निश्चित मात्रा के लिए PV/T का मान स्थिर रहता है।
इसे सामान्य रूप से PV = nRT के रूप में लिखा जाता है, जहाँ n मोल की संख्या और R सार्वत्रिक गैस नियतांक है।
❌ Why other options are incorrect? (Quick exam clarity)
Option 1 → गलत (Charles’s Law का गलत कथन; volume ∝ temperature होता है, inverse नहीं)
Option 2 → गलत (Gay-Lussac’s Law गलत लिखा गया है)
Option 3 → यह Dalton’s Law of Partial Pressures है
Option 4 → ✅ Ideal Gas Law
⭐ Extra Facts / अतिरिक्त तथ्य
📌 Extra Facts (English)
Ideal Gas Equation: PV = nRT
Value of R:
8.314 J/mol·K (SI units)
Applies best at:
Low pressure
High temperature
Real gases deviate from ideal behavior at high pressure & low temperature
📌 अतिरिक्त तथ्य (Hindi)
आदर्श गैस समीकरण: PV = nRT
R का मान:
8.314 J/mol·K
यह नियम सबसे अच्छा लागू होता है:
कम दाब
अधिक तापमान
वास्तविक गैसें अधिक दाब और कम तापमान पर आदर्श व्यवहार से विचलित हो जाती हैं
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