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When a solid is heated, it turns directl...

When a solid is heated, it turns directly into a gas. This process is called

A

boiling

B

sublimation

C

vaporization

D

condensation

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Consider the given statements to be true and decide which of the given conclusions/ assumptions can definitely be drawn from the given statements. Statements When water is cooled, it turns into ice. When water is heated, it turns into steam. Conclusions I. Water is a solid. II. Water is a gas.

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SL ARORA-Thermal Properties of Matter-Exercise
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  2. The quantity of heat required to change the unit mass of a solid subst...

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  3. When a solid is heated, it turns directly into a gas. This process is ...

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  4. A constant pressure air thermometer gave a reading of 47.5 units of vo...

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  5. A non-conducting body floats in a liquid at 20^(@)C. with 2//3 of its ...

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  6. Calorimeters are made of which of the following

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  7. Hailstone at 0^@C from a height of 1 km on an insulating surface conve...

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  8. Statement I: The bulb of one thermometer is spherical while that of th...

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  9. On a cold morning, a metal surface will feel colder to touch than a wo...

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  10. Assertion : Woollen clothes keep the body warm in winter Reason : Ai...

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  11. Heat travels through vaccum by

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  12. The amount of radiation emitted by a perfectly black body is proportio...

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  13. The unit of thermal conductivity is :

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  14. A rod AB is 1m long. The temperature of its one end A is maintained at...

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  15. The reezer in a refrigeratror is located at the top section so that

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  16. Three objects coloured black, gray and white can withstand hostile con...

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  17. If the amount of heat energy received per unit area from the Sun is me...

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  18. A black body is at a temperature 300 K. It emits energy at a rate, whi...

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  19. If temperature of a black body increases from 7^(@)C to 287^(@)C , the...

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  20. A black body is heated from 27^(@)C to 127^(@)C. The ratio of their en...

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