12°C तापमानावर पाण्याची भौतिक अवस्था काय असते?

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

Answer (Detailed Solution Below)

Option 1 : द्रव
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Detailed Solution

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द्रव हे योग्य उत्तर आहे.

Key Points

  • पाणी तापविल्यास असंगत आचरण दर्शवते; म्हणजेच, 0°C पासून 4°C पर्यंत पाण्याचे तापमान वाढविल्यास त्याचे आकारमान वाढण्याऐवजी कमी होते.
  • 12°C ला, पाण्याची भौतिक अवस्था द्रव असते. म्हणून, पर्याय (1) योग्य आहे.
    • 25°C तापमानाला सुद्धा पाणी द्रव अवस्थेत असते.
  • पाण्याची घनता 4°C सर्वात जास्त असते.​

Additional Information

  • 0°C ला, पाण्याची भौतिक अवस्था घन किंवा बर्फ रूपात असते;  कारण या तापमानाला अवस्थांतर होण्याची प्रक्रिया घडते.
    • 100°C ला, पाण्याची भौतिक अवस्था वायू असते; हे तापमान  पाण्याचा उत्कलनांक दर्शवते, जेथे पाण्याचे बाष्पीभवन होते.
  • अतिआयनिक पाणी ही पाण्याची अत्यंत उच्च तापमानात अस्तित्वात   असणारी एक अवस्था आहे.

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