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Matter and its states practice question for Railways, SSC. Review the correct answer and explanation, then continue with related practice below.

Question language / प्रश्न भाषा

During the melting of pure ice at 0°C under constant pressure, the temperature ______ until melting is complete.

स्थिर दाब पर 0°C की शुद्ध बर्फ के पिघलने के दौरान, गलन पूरा होने तक तापमान ______।

Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।

A

Remains constantस्थिर रहता है

✓

B

Continuously increasesलगातार बढ़ता है

C

Immediately becomes 100°Cतुरंत 100°C हो जाता है

D

Continuously decreasesलगातार घटता है

Correct Answerसही उत्तर

A. Remains constantA. स्थिर रहता है

Explanationव्याख्या

The supplied heat is used as latent heat of fusion to change the state rather than raise the temperature.

दी गई ऊष्मा तापमान बढ़ाने के बजाय गलन की गुप्त ऊष्मा के रूप में अवस्था बदलने में प्रयुक्त होती है। ---

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At normal atmospheric pressure, the melting point of ice in Kelvin is approximately ______.सामान्य वायुमंडलीय दाब पर बर्फ का गलनांक केल्विन में लगभग ______ है।Same topic · Same subject · Same exam

During boiling of pure water at 100°C at normal atmospheric pressure, additional heat is used mainly for ______.सामान्य वायुमंडलीय दाब पर 100°C पर शुद्ध पानी के उबलने के दौरान अतिरिक्त ऊष्मा मुख्यतः ______ के लिए प्रयुक्त होती है।Same topic · Same subject · Same exam

During melting, the heat supplied to a solid is mainly used to ______.गलन के दौरान ठोस को दी गई ऊष्मा मुख्यतः ______ के लिए प्रयुक्त होती है।Same topic · Same subject · Same exam

Which statement best describes the role of temperature and pressure in changing the state of matter?पदार्थ की अवस्था बदलने में तापमान और दाब की भूमिका को कौन-सा कथन सबसे अच्छी तरह बताता है?Same topic · Same subject · Same exam

Why does dry ice not leave a liquid residue under ordinary atmospheric conditions?सामान्य वायुमंडलीय परिस्थितियों में शुष्क बर्फ द्रव अवशेष क्यों नहीं छोड़ती?Same topic · Same subject · Same exam

At normal atmospheric pressure, the boiling point of pure water in Kelvin is approximately ______.सामान्य वायुमंडलीय दाब पर शुद्ध पानी का क्वथनांक केल्विन में लगभग ______ है।Same topic · Same subject · Same exam

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