Heat and Temperature | Physics | Railway group D | Wbp SI | Wb Constable | SSC

Here are some important one liners from the subject of Heat and Temperature in Physics which are very important for your upcoming Railway, SSC and various State Level Exams.

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• Heat is a form of Energy.

• Sun is the main source of heat energy.

• Heat bring Chemical Changes.

• Insulator do not conduct heat.

• Black colour absorb maximum heat.

• Silver is good conductor of heat.

• The heat of the sun reaches to earth by Radiation.

• The process of heat transfer in Solids conduction.

• The process of transfer of heat in Liquids and gases is convection.

• The temperature liquid changes into vapour at Boiling point.

• The process of changing substance from solid to liquid is melting.

• Si units of specific heat J /kg/Kelvin.

• Winter season water pipe burst because of solidification of water.

• Boiling of water inside the pressure cooker 120° C.

• Solid convert into liquid is called MELTING.

• Solid convert into Gas is called SUBLIMATION.

• Liquid convert into solid is called FREEZING.

• Liquid convert into Gas is called EVAPORATION.

• Gas convert into solid is call all DEPOSITION.

• Gas convert into liquid is called CONDENSATION.

✔️Normal Temperature of Human Body 37.0°C and 98.6°F and 310.15 Kelvin.

(0°Celsius = 32°Fahrenheit = 273 Kelvin)

✔️The Freezing point of water is 32°F.

✔️The Boiling point of water is 212°F = 100°C .

✔️The Boiling point of water in kelvin scale

( 100+273K ) = 373 K .

✔️Melting point of ice is 273 K .

✔️4°Celsius temp water density is maximum.

✔️- 40° Celsius and Fahrenheit scale show a similar reading.

✔️The absolute zero pressure is achieved at the temperature of -273° c .

✔️100° Celsius water can exist in both liquid and solid conditions.

✔️The range of Clinical Thermometer is 37°c to 42°c.

✔️Pyrometer used to measure high temperature.

✔️At all temperatures water Evaporates.

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