Question # 1

The value of latent heat of vaporization of water is:

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2.26 x 10⁶ Jkg^-1

2.29 x 10⁵Jkg^-1

2.26 x 10^-6Jkg^-1

3.29 x 10^-5Jkg^-1

In kelvin scale, lower reference point is:

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273 K

373 K

180 K

100 K

Specific heat of glass

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780 Jkg^-1K^-1

800 Jkg^-1K^-1

840 Jkg^-1K^-1

880 Jkg^-1K^-1

Degree of hotness or coldness a body is called:

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Heat

Internal Energy

Temperature

Potential energy

Which process produced cooling effect?

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boiling

freezing

condensation

evaporation

Boiling point of water is:

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0 ^oC

100^oC

212^oC

180^oC

Gallium (element) melts at:

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40 °C

30 °C

80 °C

90 °C

Evaporation takes place at temperature :

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100°C only

0°C only

35°C Only

At all temperature

Water freezes at

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0oF

32oF

273 K

0 K

__________ expands on heating?

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Matter

Plasma

Gas

Solid

The boiling point of mercury is:

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-10 ^oC

150^oC

375^oC

457^oC

The specific heat of glass is:

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501.72

500

501

502

The range of clinical thermometer is:

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90 ^oC - 106^oC

35^oC - 42^oC

100^oC - 132^oC

24^oC - 35^oC

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