Polystyrene (foam): -0.04 oC/sec weights of polystyrene cup: 113.8g thickness of polystyrene cup: 0.1mm
Heat will travel faster through a glass cup than a plastic cup because glass is a better conductor of heat than plastic. This means that heat will transfer more quickly through the glass, making it heat up or cool down faster compared to the plastic cup.
No, a plastic bottle is not a good insulator because it is a poor conductor of heat. Insulators work by minimizing the transfer of heat, and plastic is not as effective as materials like glass or ceramic.
Ice will typically melt faster in a plastic or styrofoam cup compared to a paper cup. This is because plastic and styrofoam are better insulators, meaning they transfer heat more efficiently than paper. Therefore, the heat from the surroundings will more readily reach the ice in a plastic or styrofoam cup, causing it to melt faster.
Steel has a heat capacity of about 0.49 kJ/kg/°C. Solid plastics have a heat capacity of about 1.67 kJ/kg/°C. It thus takes more energy to warm plastic 1 °C than to warm steel 1 °C. As to why steel has a higher heat capacity than plastic... It may be because plastics have more ability to absorb energy into the vibrational modes of the atoms in the long polymer chains than steel does in its fairly fixed crystaline/metal structure.
Plastic is less dense than glass, so normally a plastic cup is considerably lighter than a glass cup, although in theory a very small glass cup could weigh less than a very large plastic cup.
A glass cup will conduct heat away quickly - a plastic cup would hold heat the best.
Heat will travel faster through a glass cup than a plastic cup because glass is a better conductor of heat than plastic. This means that heat will transfer more quickly through the glass, making it heat up or cool down faster compared to the plastic cup.
A plastic cup holds more heat because plastic can't take out heat. Glass conducts heat away.
No, a plastic bottle is not a good insulator because it is a poor conductor of heat. Insulators work by minimizing the transfer of heat, and plastic is not as effective as materials like glass or ceramic.
The cup of water will heat up faster than the cup of sand because water has a higher specific heat capacity, meaning it requires more energy to increase its temperature compared to sand. Sand, being a solid, has a lower specific heat capacity and will heat up more quickly.
Ice will typically melt faster in a plastic or styrofoam cup compared to a paper cup. This is because plastic and styrofoam are better insulators, meaning they transfer heat more efficiently than paper. Therefore, the heat from the surroundings will more readily reach the ice in a plastic or styrofoam cup, causing it to melt faster.
It depends on which one radiates heat fastest. Since plastics are generally poor heat conductors, you'd expect the plastic cup to cool more slowly. But a thin plasic cup, painted black, may radiate more heat than a very shiny metal cup.
There are many different kinds of plastic, so there would be no "fixed" latent heat of vaporization. Additionally, heating most plastics would not cause them to vaporize. They would burn in the presence of air (oxygen), or pyrolize in an inert atmosphere. Plastics won't generally change from a liquid to a gas like water becomes steam when it is hot enough. The heat will cause chemical changes in the plastic, and it will cease to be what it was in the beginning.
A paper cup typically does not keep water hotter than a plastic cup. Paper is a poor insulator compared to plastic, so heat is more likely to escape from a paper cup, leading to faster cooling of the water inside.
A plastic cup is a good conductor of heat, meaning it allows heat to transfer quickly out of the cup and into the water, helping it cool down faster. The plastic material also has less thermal mass than glass or ceramic, so it cools down faster itself, helping to cool the water more efficiently.
The cup of water will receive more heat energy compared to the cup of soil because water has a higher specific heat capacity than soil. This means water can absorb more heat for a given temperature change compared to soil.
How long something stays hot depends on its heat capacity. Heat capacity is a measure of the amount of energy required to change the temperature of an object.Water has a relatively large heat capacity per gram whereas metals have a low heat capacity. This means that water retains it heat but metals heat and cool quickly. We can take a metal tray from an oven and put it to cool, we can touch the tray soon afterwards but the roast that we put on the serving platter stays hot for a lot longer.The plastic in the kettle will cool depending on its heat capacity. Metal cools quickly due to its low heat capacity.