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Unit - 5.1 Heat Energy And Its Genera Effects — PHYSICS STD 7 — Question

ICSE BoardEnglish MediumSTD 7PHYSICSUnit - 5.1 Heat Energy And Its Genera Effects5 Marks
Question
Column AColumn B
1.The process due to which a liquid changes to gaseous state at a fixed temperature by the absorption of heat energy.(a)Rise in temperature
2.A change takes place in a substance on the absorption of heat energy when no change of state or dimensions takes place.(b)Sublimation
3.A process due to which a solid directly changes to gaseous state on the absorption of heat energy.(c)Evaporation
4.A process due to which certain substances burn in air or oxygen releasing a large amount of heat energy.(d)Vaporisation
5.The process of change of liquid into gas at any temperature.(e)Combustion
✓

Answer

Column AColumn B
1.The process due to which a liquid changes to gaseous state at a fixed temperature by the absorption of heat energy.(a)Vaporisation
2.A change takes place in a substance on the absorption of heat energy when no change of state or dimensions takes place.(b)Rise in temperature
3.A process due to which a solid directly changes to gaseous state on the absorption of heat energy.(c)Sublimation
4.A process due to which certain substances burn in air or oxygen releasing a large amount of heat energy.(d)Combustion
5.The process of change of liquid into gas at any temperature.(e)Evaporation

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