January 15, 2025, 08:50:08 AM
Forum Rules: Read This Before Posting


Topic: What kind of heat transfer?  (Read 6390 times)

0 Members and 1 Guest are viewing this topic.

Offline tou

  • Regular Member
  • ***
  • Posts: 22
  • Mole Snacks: +0/-0
What kind of heat transfer?
« on: April 19, 2008, 01:05:44 PM »
Hi

I hope this is the right place to ask.

I want to know which form of heat transfer it is when you use water to heat up other liquids. More precisely, you have a container with hot water and inside a beaker in which an enzymatic reaction is going on. The temperature in the beaker itself was room temperature when it was put into the container. Thus only the water was heated and this affects the reaction in the beaker.

What kind of heat transfer is it, from the water in the container to the liquids/enzymes inside the beaker.

Thanks!  :)

Offline Arkcon

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7367
  • Mole Snacks: +533/-147
Re: What kind of heat transfer?
« Reply #1 on: April 19, 2008, 04:52:11 PM »
Well, I call that using a "water bath". ;)  I don't know what terminology you're actually looking for -- if you heat up a beaker in a water bath, or you heat it carefully over a open flame, or you leave it in a sunny spot and it coincidentally reaches the correct temperature, you appear to be expecting a different term in each case, and AFAIK, there isn't one.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline Alpha-Omega

  • Full Member
  • ****
  • Posts: 693
  • Mole Snacks: +360/-231
  • Gender: Female
  • Physical Inorganic Chemist
Re: What kind of heat transfer?
« Reply #2 on: April 19, 2008, 06:16:34 PM »
From your description, you are performing this reaction in a :hot" water bath. Perhaps this is the explanation you are looking for:

http://ghs.gresham.k12.or.us/science/ps/sci/ibbio/chem/notes/chpt8/enzfactorstemp.htm

Offline tou

  • Regular Member
  • ***
  • Posts: 22
  • Mole Snacks: +0/-0
Re: What kind of heat transfer?
« Reply #3 on: April 20, 2008, 06:06:44 AM »
I was actually wondering whether it is conduction, conviction or radiation:

http://en.wikipedia.org/wiki/Heat_transfer

Offline DrCMS

  • Chemist
  • Sr. Member
  • *
  • Posts: 1306
  • Mole Snacks: +212/-84
  • Gender: Male
Re: What kind of heat transfer?
« Reply #4 on: April 20, 2008, 06:10:52 AM »
If you read your own link you'd know the answer is conduction.

Online Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27897
  • Mole Snacks: +1816/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: What kind of heat transfer?
« Reply #5 on: April 20, 2008, 06:12:04 AM »
I am convicted radiation is the least important here ;)
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline Arkcon

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7367
  • Mole Snacks: +533/-147
Re: What kind of heat transfer?
« Reply #6 on: April 20, 2008, 08:06:49 AM »
Ah ... now I see where it was going ... srry, tou: that was the bit of explanation I was missing.  But, like DrCMS: and Borek: say, once you more or less explain it, with a wikipedia link, you pretty much have the whole answer.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline Alpha-Omega

  • Full Member
  • ****
  • Posts: 693
  • Mole Snacks: +360/-231
  • Gender: Female
  • Physical Inorganic Chemist
Re: What kind of heat transfer?
« Reply #7 on: April 20, 2008, 03:13:07 PM »
I would think that by placement of a test tube or beaker in a hot water bath that the material contained in said test tube or beaker is heated by the process of conduction....the mechanis of heat transfer from the hot water bath to the material contained in the beaker/test tube is by conduction... ;)

From the link you posted per wiki:

Conduction is the transfer of thermal energy from a region of higher temperature to a region of lower temperature through direct molecular communication within a medium or between mediums in direct physical contact without a flow of the material medium.

Sponsored Links