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The best method of heating fluid in a tube is to point the flame directly at the bottom of the tube?
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∙ 9y ago
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Elian Konopelski
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What items is used to distribute heat from a Bunsen burner when heating the bottom of a crucible?
A crucible is placed in a pipestem triangle placed on an iron ring while being heated. This supports the crucible while allowing the bottom of the crucible to be directly exposed to the flame of the Bunsen burner. There is no item that is used to distribute heat from a Bunsen burner when heating the bottom of a crucible. The bottom of the crucible is intended to be exposed to the direct flame of the Bunsen burner.
The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A luminous flame
What is considered an open fire?
An "open flame" refers to flame, usually used as a heating source, that is directly exposed to the outside elements, or often the object to be heated. Examples would include a Bunsen burner, a bonfire, or in some cases grills. The opposite would include heating elements that do not directly openly expose the flame, such as old stoves or heating elements.
What is the advantage of using evaporation by water bath over direct heating method?
The advantage of using evaporation by water bath over a direct heating method is when heating directly, for example, with a Bunsen flame - the substance in the boling tube may decompose upon such an accelerated heating because of variations in the intensity of the flame and then may be scorched, while a water bath provides a constant heating of the subsatnce by distributing heat to the boiling tube equally throughout, so that the substance cautiously gets heated until a fixed point (be it the melting point or boiling point) is reached.
What would you use a roaring Bunsen burner flame for?
Most things in chemistry.. Usually you would use a blue Bunsen flame (half open at the bottom) for heating almost everything. The yellow flame is only a safety flame, as you can't see a blue one all that well, and it's not used for heating because it produces soot
What items is used to distribute heat from a Bunsen burner when heating the bottom of a crucible?
A crucible is placed in a pipestem triangle placed on an iron ring while being heated. This supports the crucible while allowing the bottom of the crucible to be directly exposed to the flame of the Bunsen burner. There is no item that is used to distribute heat from a Bunsen burner when heating the bottom of a crucible. The bottom of the crucible is intended to be exposed to the direct flame of the Bunsen burner.
Why must you use hot water bath to melt the naphthalene instead of heating it directly over a flame?
Heating it on a flame will cause possibly dangerous vapour. Hot water avoids this.
The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A luminous flame
What is considered an open fire?
An "open flame" refers to flame, usually used as a heating source, that is directly exposed to the outside elements, or often the object to be heated. Examples would include a Bunsen burner, a bonfire, or in some cases grills. The opposite would include heating elements that do not directly openly expose the flame, such as old stoves or heating elements.
What is the advantage of using evaporation by water bath over direct heating method?
The advantage of using evaporation by water bath over a direct heating method is when heating directly, for example, with a Bunsen flame - the substance in the boling tube may decompose upon such an accelerated heating because of variations in the intensity of the flame and then may be scorched, while a water bath provides a constant heating of the subsatnce by distributing heat to the boiling tube equally throughout, so that the substance cautiously gets heated until a fixed point (be it the melting point or boiling point) is reached.
Why should the yellow Bunsen burner flame not be used for heating?
because it isnt hot enough and will leave soot on the bottom of the thing you are heating
On a Bunsen burner which flame is the 'clean' flame for heating?
Blue flame is a clean flame.
Which type of flame will you use for heating?
the blue flame
What would you use a roaring Bunsen burner flame for?
Most things in chemistry.. Usually you would use a blue Bunsen flame (half open at the bottom) for heating almost everything. The yellow flame is only a safety flame, as you can't see a blue one all that well, and it's not used for heating because it produces soot
Which flame is not suitable for heating in Bunsen burner and why?
The yellow flame because that is the safety flame
What type of flame should be used for heating solids?
a blue flame
What is appearance of a flame that is used for heating?
luminous
