Home » Thermodynamics (page 3)

Thermodynamics

Evaporation and boiling

If you are moping the floor in home you will observe that the wet floor or surface of floor becomes dry very early after a while.We can say that thin layer of water on floor surface has evaporated.Evaporation is the change the change of state of liquid into vapours. Evaporation is different from boiling besides this in both processes evaporation ...

Read More »

Radiation heat transfer examples

Radiation heat transfer is the mode of transfer of heat from one place to another in the form of waves called electromagnetic waves.Convection and conduction require the presence of matter as a medium to carry the heat from the hotter to the colder region. But a third type of heat transfer occurs without any medium at all. All life on Earth ...

Read More »

convection heat transfer : Definition,Examples and Applications

Radiation of heat Conduction of heat Convection of heat definition “Transfer of heat by actual movement of molecules from hot place to a cold place is known as convection.” Liquids and gases are poor conductors of heat.However,heat is transfer through  fluids(liquids or gases)easily by another method called convection. Why a balloon inflated with hot shown in figure .rise up?a liquid ...

Read More »

What are the three modes of heat transfer?

What are three types of heat transfer? “when two bodies at different temperature are in thermal contact with each other,thermal energy from a hot body flows to a cold body in the form of heat.This is called heat transfer.” Transfer of heat is a natural process.It continues all the time as long as the bodies in thermal contact are at ...

Read More »

Temperature Conversion formulas and examples

What are different scales of temperature? There are three different scales of temperature,which are given in the list: Celsius scale Fahrenheit scale Kelvin scale   1.Temperature Conversion from Celsius to Kelvin scale: The temperature T on kelvin scale can be obtained by adding 273 in the temperature C on Celsius scale.Thus the formula to convert Celsius to kelvin is given ...

Read More »

Different types of thermometer for clinical and laboratory use

“Thermometer is the device which is used to measure the temperature of a body.”Some substances have the property that changes with temperature.Substances that show a change in temperature can be used as a thermometric material.For example, some substances expand on heating, some change their colours, some change their electric resistance, etc.Nearly all the substances expand on heating.Liquids also expand on ...

Read More »

Temperature and 3 types of temperature scales

Different types of thermometer  What is temperature in physics? “The temperature of a body is the degree of hotness or coldness of the body.”or “Average kinetic energy of atoms or molecules.”When we touch a body,we feel it hot or cold.The temperature of a body tells us how hot or cold a body is. When two systems are in thermal equilibrium,we ...

Read More »