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Does a pot of water boil faster with the lid on?

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  • Does a pot of water boil faster with the lid on?

    it probably does.

    i need #'s.

    Vince

  • #2
    Re: Does a pot of water boil faster with the lid on?

    No.

    J.C.

    Comment


    • #3
      Re: Does a pot of water boil faster with the lid on?

      Yes it does, the cover reflects the heat, we crunched the number for a thermodynamics class, ill have to look them up for you tommorrow my notebooks and old texts are at work

      Comment


      • #4
        Re: Does a pot of water boil faster with the lid on?

        Pressure Cooker?

        J.C.

        Comment


        • #5
          Re: Does a pot of water boil faster with the lid on?

          thats it JC, water boils faster when the pressure increases. As pressure increases the boiling point decreases, ie water will boil at 210 degrees vs 212 with at 20 in Hg where as normal atmospheric pressure by sea level is 14.7 in Hg

          Comment


          • #6
            Re: Does a pot of water boil faster with the lid on?

            i was just talking about "just" a lid.

            Tammy thinks so.

            Vince

            Rich, we/i need numbers

            me, i'm only a man.................

            Comment


            • #7
              Re: Does a pot of water boil faster with the lid on?

              Originally posted by wrench spinner View Post
              thats it JC, water boils faster when the pressure increases. As pressure increases the boiling point decreases, ie water will boil at 210 degrees vs 212 with at 20 in Hg where as normal atmospheric pressure by sea level is 14.7 in Hg
              Thank you. Honestly.

              I've always gotten this confused.

              J.C.

              Comment


              • #8
                Re: Does a pot of water boil faster with the lid on?

                It does boil faster with the lid on.
                Think of the lid as insulation slowing the heat loss from the pan and water. So it heats faster.

                Unless the ambient temperature of room is above the boiling point of the water. I don't think it matters in a microwave either.

                Numbers... well hmm I ah umm er....

                I just put two pans on the stove 1 cup of water per pan one covered one not...covered pan boiled at 3 min. the uncoveredat 3min 45 seconds.
                Last edited by EasyEman; 04-15-2009, 10:02 PM. Reason: Boiled water

                Comment


                • #9
                  Re: Does a pot of water boil faster with the lid on?

                  Originally posted by wrench spinner View Post
                  thats it JC, water boils faster when the pressure increases. As pressure increases the boiling point decreases, ie water will boil at 210 degrees vs 212 with at 20 in Hg where as normal atmospheric pressure by sea level is 14.7 in Hg
                  Wait. It's not the opposite?

                  Confused again.

                  J.C.

                  Comment


                  • #10
                    Re: Does a pot of water boil faster with the lid on?

                    Originally posted by JCsPlumbing View Post
                    Wait. It's not the opposite?

                    Confused again.

                    J.C.

                    possibly I have to look it up


                    http://wiki.answers.com/Q/At_1000_fe...ill_water_boil

                    No I dont think so

                    Comment


                    • #11
                      Re: Does a pot of water boil faster with the lid on?

                      Rich, you hold the sheet so I default to you but this doesn't seem right in my mind.

                      Atmospheric pressure is lower at higher elevations and water boils faster as a result of it at these elevations.

                      That seems to prove that water at higher atmospheric pressures require higher temperatures to reach boiling point.

                      And lower atmospheric pressures require lower temperatures to reach boiling point.

                      Atmospheric pressure being the "atmosphere" applied to the water/vapor.

                      They seem to me to be directly proportional.

                      J.C.

                      Comment


                      • #12
                        Re: Does a pot of water boil faster with the lid on?

                        Originally posted by JCsPlumbing View Post
                        Rich, you hold the sheet so I default to you but this doesn't seem right in my mind.

                        Atmospheric pressure is lower at higher elevations and water boils faster as a result of it at these elevations.

                        That seems to prove that water at higher atmospheric pressures require higher temperatures to reach boiling point.

                        And lower atmospheric pressures require lower temperatures to reach boiling point.

                        Atmospheric pressure being the "atmosphere" applied to the water/vapor.

                        They seem to me to be directly proportional.

                        J.C.

                        YOU ARE CORRECT

                        http://wiki.answers.com/Q/How_does_t...point_of_water

                        My mind was working backwards, I would then default to eEasyEman's observation regarding reflection of heat/insulation provided by the top

                        Comment


                        • #13
                          Re: Does a pot of water boil faster with the lid on?

                          J.C. 1
                          WrenchSpinner 0



                          Had to get it on record as it might never happen again.

                          Thanks.

                          J.C.

                          Comment


                          • #14
                            Re: Does a pot of water boil faster with the lid on?

                            Originally posted by Vince the Plumber View Post
                            it probably does.

                            i need #'s.

                            Vince

                            So Vince why don't you do the experiment and you could inform us of the time difference.

                            Simon

                            Comment


                            • #15
                              Re: Does a pot of water boil faster with the lid on?

                              Originally posted by Some Day Plumbing View Post
                              So Vince why don't you do the experiment and you could inform us of the time difference.

                              Simon
                              Vince can't boil water where he is.....

                              It's to cold

                              Comment

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