Home » Ask & Discuss » Physics
« Back to Discussion

Thermal Physics

New kid on the Block

Joined:	15 Apr 2011
Post:	4

15 Apr 2011 09:20:47 IST

0 People liked this

757

heat is absorbed by the body but its temperature does not rise.

Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics , Thermal Physics

heat is absorbed by the body but its temperature does not rise.

Comments (6)

hemang

Blazing goIITian

Joined: 27 Dec 2010

Posts: 1508

15 Apr 2011 10:20:40 IST

Like 0 people liked this

it is when the body is changing its state. the body uses this heat called the latent heat because it is hidden. there are two types of latent heats - latent of fusion (melting) and latent heat of vaporisation. rate me............

Viraat Gupta

Forum Expert

Joined: 21 Jun 2011

Posts: 743

30 Sep 2011 16:48:40 IST

Like 0 people liked this

heat is used to break or loosen the bonds b/w particles .. so in that situation .. heat is absorbed but temp doesnot rise ...

AUGUSTIN

New kid on the Block

Joined: 14 Oct 2011

Posts: 13

17 Oct 2011 14:44:31 IST

Like 0 people liked this

It is called as latent heat

EXAMPLE: WATER

water has latent heat of about 330kJ/kg. it will liberate that much heat and become ice at 0*C.

in the same way when ice is heated it will absorb 330kJ/kg of heat and will become water.

edison

Forum Expert

Joined: 19 Oct 2006

Posts: 7797

30 Nov 2011 12:03:27 IST

Like 0 people liked this

Change in state leads to absorption of heat but at constant temperature and this heat is known as latent heat of fusion or vaporization depending on change in state from solid to liquid or from liquid to vapor.

Pran

New kid on the Block

Joined: 2 Dec 2011

Posts: 7

2 Dec 2011 17:35:47 IST

Like 0 people liked this

As many have already discussed..i would just like to add a thing to it. Temperature is the measure of average kinetic energies of the particles forming any body..during a phase change all the heat absorbed is used to loosen the bonds at atomic levels to bring about a change in the so called PHASE of the body..Here, if it is supplied more heat than the latent amount its temprature will surely increase..

mithu

Cool goIITian

Joined: 31 Jul 2009

Posts: 61

6 Dec 2011 00:13:40 IST

Like 0 people liked this

apart from latent heat,deu to expansion this may happen

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team