What happens to the particles of a substance when it is heated?
What happens to the particles of a substance when it is heated?
किसी पदार्थ को गर्म करने पर उसके कणों का क्या प्रभाव पडंता है?
Detailed Solution & Logic
They move faster./ वे तेज़ गति करते हैं
🟢 Explanation
When a substance is heated, it absorbs heat energy. This energy increases the kinetic energy of its particles. As a result, the particles start moving faster and move farther apart from each other.
This is why:
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Solids expand on heating,
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Liquids flow more easily,
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Gases expand rapidly.
🟢 व्याख्या
जब किसी पदार्थ को गर्म किया जाता है, तो वह ऊष्मा ऊर्जा को अवशोषित करता है। इससे उसके कणों की गतिज ऊर्जा (Kinetic Energy) बढ़ जाती है और कण तेज़ गति से चलने लगते हैं तथा एक-दूसरे से दूर हो जाते हैं।
इसी कारण —
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ठोस पदार्थ गर्म होने पर फैलते हैं,
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द्रव अधिक आसानी से बहते हैं,
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गैसें तेजी से फैलती हैं।
⭐ Extra Facts (Additional Knowledge)
🔹 English
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Temperature is a measure of the average kinetic energy of particles.
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Heating may change the state of matter (solid → liquid → gas).
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Even in solids, particles are always vibrating; they never completely stop moving.
🔹 हिन्दी
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तापमान कणों की औसत गतिज ऊर्जा का माप होता है।
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गर्म करने से पदार्थ की अवस्था बदल सकती है (ठोस → द्रव → गैस)।
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ठोस में भी कण हमेशा कंपन करते रहते हैं, वे पूरी तरह स्थिर नहीं होते।
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