12°C पर जल की भौतिक अवस्था क्या होती है?

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RRB ALP CBT I 29 Aug 2018 Shift 2 Official Paper
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  1. द्रव
  2. आयनिक
  3. गैस
  4. ठोस

Answer (Detailed Solution Below)

Option 1 : द्रव
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सही उत्तर द्रव है। 

Key Points

  • जल गर्म करने पर विषम व्यवहार प्रदर्शित करता है अर्थात् 0°C से 4°C तक ताप में वृद्धि के साथ जल की मात्रा घट जाती है और इससे अधिक ताप में वृद्धि के साथ बढ़ जाती है।
  • 12°C पर, जल की भौतिक अवस्था द्रव होती है। अतः, विकल्प 1 सही है।
    • यह 25°C पर भी द्रव होता है।
  • जल का घनत्व 4°C पर अधिकतम होता है।

Additional Information

  • 0°C पर, जल की भौतिक अवस्था ठोस या बर्फ होती है क्योंकि उस ताप पर अवस्था परिवर्तन की प्रक्रिया होती है।
    • 100°C पर, जल की भौतिक अवस्था गैस होती है और वह ताप जल का क्वथनांक होता है जहाँ जल वाष्पित होता है।
  • अति आयनिक जल, जल का एक चरण है जो अत्यधिक उच्च ताप पर उपस्थित होता है।
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