Chapter 11 Heat - Test 3

1. Gases expand more than liquids on heating

1) False
2) True
2. Liquids expand more than solids on heating.

1) True
2) False
3. Change in length is directly proportional to the original length of the solid substance as it is heated.

1) True
2) False
4. The co-efficient of volume expansion of brass is more than copper.

1) False
2) True
5. The co-efficient of volume expansion of Hydrogen is more than carbon dioxide.

1) False
2) True
6. The co-efficient of linear expansion of Gold id more than silver.

1) True
2) False
7. The co-efficient of linear expansion of Glass (common) is more than Glass(Pyrex).

1) False
2) True
8. The length of the Concorde increases due to immense increase in temperature caused by friction

1) False
2) True
9. 100 cm3 of water changes to about 109 cm3 of ice.

1) False
2) True
10. Pressure of a gas is inversely proportional to the volume of a gas at constant temperature

1) False
2) True
11. Volume of a gas is inversely proportional to the temperature at constant pressure.

1) False
2) True
12. Kelvin s scale system can be explained on the basis of graph drawn for Boyle s law.

1) False
2) True
13. The unit of specific heat in S.I unit is JKg-1 K-1.

1) True
2) False
14. The method of transfer of heat through vaccum is called conduction.

1) False
2) True
15. K= QL / A (T1 - T2)t
1) False
2) True
16. According to Law of heat exchange.
[Heat absorbed by cold bodies] = [Heat released by hot bodies]

1) False
2) True
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