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WorksheetsHeat
Total questions: 11
Worksheet time: 6mins
Resultant temperature of a mixture of of 20 g ice at 0°c and 20 g water at 50 °c
Specific heat of water in cal/g°c
(a)
_____behaves like heat stores house for the earth
Oceans
Hills
Plateaus
All the above
The presence of water vapour molecules in air is
Dew
Humidity
Fog
Condensation
The principle of method of mixtures
Heat gain by hot body is equal to heat lost by cold
Heat gain by heavier body is equal to heat lost by lighter body
Heat gained by cold body is equal to heat lost by hot body
All the above
Si units of specific heat
J.kg.K
J/kg.K
Kg/J.K
K/J.kg
Which of the following is a cooling process
Condensation
Boiling
Evaporation
All the above
The process of escaping of molecules from the surface of a liquid at any temperature is called
Melting
Condensation
Freezing
Evaporation
Temperature of an iron rod is 330 K. Its temperature in centigrade
55
59
53
57
Rate of evaporation depends on
Surface area
Temperature
Vapour already present
All the above
When ice melts its temperature
Remains constant
Increases
Decreases
Cannot say
