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What is the heat capacity of a plastic cup?
Polystyrene (foam): -0.04 oC/sec weights of polystyrene cup: 113.8g thickness of polystyrene cup: 0.1mm
How is heat measured in a calorimeter?
An insulated container with a thermometer to measure change of heat can be used as a calorimeter. Example a polystyrene cup with a lid.
Why does the water not leak from a styrofoam cup poked with a pin?
When the pin is pushed into the cup the polystyrene (Styrofoam) is temporarily pushed aside. When the pin is withdrawn the polystyrene reforms largely to its original location. If a drill was used, the same diameter as the pin and material was actually removed the cup would leak. Also the water tension of the water in front of a hole the size of a pin would prevent the water from leaking out.
Why is an experiment performed in a polystyrene cup and not in a glass beaker?
The polystyrene cup is a better insulator than metal, metal is a good conductor of heat and so would transfer the heat from the reaction to the air outside it, where polystyrene keeps the heat inside. This enables you to get a much more accurate reading, as less heat has escaped.
What can you do with polystyrene?
Polystyrene can be used in various industries like Polystyrene Packaging, Construction, Display, Exhibition, Signs, and all areas of the foam industry. Various different items can be produced from polystyrene. For a complete range and details about products please visit: http://www.polystyrene.uk.com/
Does a polystyrene cup hold more heat than a plastic cup?
Polystyrene
What materials are used to make a drinking cup?
polystyrene or polypropolene............... excuse me for my speeling but these ar usally it
What was used before polystyrene?
newspaper for padding and i don't know what else
What is Raw material of a polystyrene cup?
hydrocarbons
How does a polystyrene cup keep drinks warm?
because it does
Is polystryrence cup a biodegrable items?
Polystyrene is not biodegradable
What are the ingredients in a styrofoam cup?
Expanded polystyrene foam.
Which cup keeps hot water the hottest polystyrene or metal?
Polystyrene (especially the expanded "Styrofoam (R)" type) is a good insulator. Metals are good conductors of heat.The insulating cup will maintain a greater heat differential than the conductor so if there is a liquid in the cup that is at a greater temperature than the surroundings, the metal cup will loose more heat than the polystyrene cup.
What is the heat capacity of a plastic cup?
Polystyrene (foam): -0.04 oC/sec weights of polystyrene cup: 113.8g thickness of polystyrene cup: 0.1mm
What type of plastic is a plastic disposable cup made of?
Polystyrene. the opaque white cups that you can make fingernails impressions in, are foamed polystyrene. Clear sups that you get on an airplane are general-purpose polystyrene.
Why does a polastyreane cup feel warm?
A polystyrene cup feels warm because it is a poor conductor of heat. This means that heat is not transferred easily from the outside of the cup to the inside and the cup is unable to dissipate the heat quickly. Instead the heat generated by the liquid inside the cup is trapped making the cup feel warm to the touch.The material of a polystyrene cup is designed to insulate meaning it does not easily transfer heat. This means that heat generated by the liquid inside the cup is retained causing the cup to feel warm to the touch. Other materials such as metal or ceramic are much better conductors of heat and are better able to dissipate heat quickly.The following characteristics of polystyrene make it a poor conductor of heat:Low thermal conductivityHigh resistance to heat transferLow thermal diffusivityWhen a polystyrene cup is filled with a hot liquid the heat of the liquid is not easily transferred out of the cup making it feel warm to the touch. This is why polystyrene cups are often used for hot beverages.
How do you fake break your arm?
Crush a polystyrene cup under the armpit.
