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Heat Transfer

The transfer ...

Question

The transfer of heat from molecule to molecule without the movement of molecules from one place to another is called
(a) conduction
(b) expansion
(c) convection
(d) radiation

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Solution

(a) conduction
Conduction is the transfer of heat from one molecule to another without the movement of molecules from one place to another.

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Q. Q))The transfer of heat from molecule to molecule,without the movement of molecules from one place to another is :::
(a)conduction
(b)convection
(c)radiation
(d)either of these

sir/ma'am pls answer fast as it is urgent ._{pls sir/maam}
thanking you
krit

Q. In which method of transfer of heat do the molecules travel from the hot the cold protion?

(a) conduction
(b) convection
(c) radiation
(d) all of the above

Q. In a room containing air, heat can go from one place to another

(a) by conduction only
(b) by convection only
(c) by radiation only
(d) by all the three modes

Q. Q. Match the following:

Mode of Heat Transfer	Mechanism
1. Conduction	(a) Heat transfer occurs through electromagnetic waves without involving particles.
2. Convection	(b) Transfer of heat through the movement of liquids and gases.
3. Radiation	(c) Heat transfer takes place between objects by direct contact.

Select the correct answer using the code given below:

Q. The primary mode of heat transfer in liquid is

(a) conduction
(b) liquid does not transfer heat
(c) radiation
(d) convection

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