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Why pear shaped flask is used instead of round bottom flask?
even distribution of heat
What is the thermo flask?
Thermos flask is a thermos container used to store liquids like any hot drink. The liquid added to thermos flask will retain the temperature even after some time irrespective of external temperatures.
Why is the inside part of the thermos flask shiny?
It helps to insulate the thing inside the thermo flask. The heat or coldness outside the flask gets reflected away. It might sound silly but it is true
What happens to the heat generated by a chemical reaction in a normal non-insulated glass flask?
The heat is released in the environment.
Why do you use inverted vaccume flask in heat release and pea germination experiment?
Hey! So, basically, the flask is inverted so that air (oxygen) can get in, but bacteria cannot.
Is heat non-renewable?
That is dependent on how it is produced. Heat produced by burning fossil fuels in not renewable, but heat from concentrated solar is renewable.
What is electical energy produced by?
What is electrical energy produced by burning fossils to produce heat, which turns the generator.
What is the source of the energy that produces steam?
Heat will produce steam. The heat itself can be produced by different means; but the most common one is burning something, i.e., chemical energy.Heat will produce steam. The heat itself can be produced by different means; but the most common one is burning something, i.e., chemical energy.Heat will produce steam. The heat itself can be produced by different means; but the most common one is burning something, i.e., chemical energy.Heat will produce steam. The heat itself can be produced by different means; but the most common one is burning something, i.e., chemical energy.
What are the types of energy produced by a burning light bulb?
Light , which is useful Heat , which is NOT useful.
What is the calorific value of sand?
Sand? burning in an engine? No. No. NO. Calorific value is the heat produced by burning fuel. Sand won't burn.
Vacuum is mantained in thermos flask?
The vacuum reduce heat loss by conduction and convection.
What is the main cause of heat loss in a normal thermos flask?
The main heat loss in a good thermos flask, is due to heat conducted through the material. (Glass or Stainless Steel). There should be little heat lost through the vacuum of the flask.
How does a thermos flask reduce heat loss by conduction?
Using vacuum as an insulator avoids heat loss by conduction. Heat transfer is minimised by reflective silver surfaces that are applied to the flask. This prevents thermal radiation from entering and escaping the flask.
How does a flask reduce heat loss by conduction and radiation?
Using vacuum as an insulator avoids heat loss by conduction. Heat transfer is minimised by reflective silver surfaces that are applied to the flask. This prevents thermal radiation from entering and escaping the flask.
Is heat nuclear energy?
Heat can be produced through release of nuclear energy, but there are many other ways of producing heat as well, burning fossil fuels for example.
Where does most of the Carbon produced from burning fossil fuels end up?
It goes into the atmosphere as carbon dioxide. The heat produced by burning fuel comes from forming the carbon-oxygen chemical bonds that creates CO2.
How is heat loss by convection prevented in a thermal flask?
There is a layer of vacuum which surrounds the flask, then the inside is covered by shiny material which will reflect the heat back into the flask, there are two lids, and there is an indirect gap of about 0.01mm.
