https://padlet.com/cvsschan/thermal_transfer2 en-us 2017-07-05 09:21:25 UTC 2026-01-11 19:02:49 UTC hello@padlet.com cvsschan https://padlet.com/cvsschan/thermal_transfer2/wish/178119339 Discuss the suitability of each material in reducing heat losses from the kettles when they are used to boil water. ]]> 2017-07-05 15:45:57 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178119339 https://padlet.com/cvsschan/thermal_transfer2/wish/178155086 The shiny-coloured metal is made of metal which is a good conductor of heat as it have free moving ions to conducts thermal energy faster. Its is also shiny silver-coloured which is a poor emitter of infrared radiation which makes the kettle lose hit faster.
kettle B is made of white plastics, anf plastics is a poor conductor of heat and is made out of white which is a poor emitter of infrared radiatio .]]> 2017-07-06 02:56:57 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155086 https://padlet.com/cvsschan/thermal_transfer2/wish/178155093 Kettle B is made out of plastic whuch is a poor conductor of heat. It conducts heat away from the kettle slower. Thus minimising the thermal energy lost to the surroundings from the kettle body. 

Furthermore, it has a white colour body which is a poor emmiter of infrared radiation which reduces the thermal energy lost due to radiation.

Kettle A is made up of metal, its is a good conductor of heat. It conducts heat faster away to the surroundings. So more energy is needed to heat it.]]> 2017-07-06 02:57:02 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155093 https://padlet.com/cvsschan/thermal_transfer2/wish/178155096 Kettle B is made of plastic which is a poor conductor of heat and Kettle A is made of  to metal which is a good conductor of heat. Kettle A is shiny and silver in colour which is a poor emitter. Kettle B is white which is also a poor emitter. However, Kettle A is a metal which lose heat faster and thus Kettle B is more suitable than Kettle a in terms of reducing heat losses.]]> 2017-07-06 02:57:04 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155096 https://padlet.com/cvsschan/thermal_transfer2/wish/178155097 Kettle A is made of shiny-silver coloured of metal which the shiny-silver colour surface is a poor emitter of a radiation and thus lose thermal energy from the hot water in the kettle to the surrounding. However, since it is made of metal which is a good conductor of heat, it is able to conduct heat away from the hot water to the surrounding faster.

-kettle B
-Plastic
Poor conductor, slower rate of thermal energy loss
-White
Poor emitter of radiation 
-Lose heat slower]]> 2017-07-06 02:57:06 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155097 https://padlet.com/cvsschan/thermal_transfer2/wish/178155100 Kettle A is more suitable as metal conducts heat away at the faster rate than compared to kettle B , which is made up of plastic material. As Kettle B is made of white plastic, it also emits heat by radiation slower. As kettle a is made of shiny material is also emits heat away slow]]> 2017-07-06 02:57:09 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155100 cvsschan https://padlet.com/cvsschan/thermal_transfer2/wish/178155119 Kettle A made of metal so it conducts heat away faster, thus it increase the rate of heat loss. While kettle B is made of white plastic, hence it reflects heat back towards water in the kettle, and it is plastic so it does not conduct heat away from it as well as kettle A.]]> 2017-07-06 02:57:27 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155119 https://padlet.com/cvsschan/thermal_transfer2/wish/178155127 Kettle A is less suitable as it is made of metal which is a good conductor of thermal energy 
- shiny silver is a poor emitter of heat 
Kettle B is more suitable as it is made of plastic which is a poor conductor of thermal energy 
-white is a poor emitter of radiation

]]> 2017-07-06 02:57:31 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155127 https://padlet.com/cvsschan/thermal_transfer2/wish/178155143 Since kettle A is made out of metal which is a good conductor of heat and kettle b is made out of plastic and a poor conductor of heat, kettle b is more suitable. Kettle a can conduct heat away from the boiling water faster than kettle b but since plastic is a poor conductor of heat it will conduct heat away from the boiling water slower. So kettle b is more suitable ]]> 2017-07-06 02:57:51 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155143 https://padlet.com/cvsschan/thermal_transfer2/wish/178155158 Kettle A is suitable in reducing heat loss. It has a shiny silver-coloured surface, which is a poor emitter of infra-red radiation and hence the thermal heat lost will be reduced.
Kettle B is also suitable in reducing heat loss because it is made of plastic, which is a poor conductor of heat. Thus, less heat will be lost from the boiling water to the body of the kettle.]]> 2017-07-06 02:58:04 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155158 https://padlet.com/cvsschan/thermal_transfer2/wish/178155199 Kettle A~shiny silver,poor emitter metal:good conductor
Kettle B:plastic and white:poor emitter and conducter
Thus kettle B is a better Kettle in boiling water]]> 2017-07-06 02:59:06 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155199 https://padlet.com/cvsschan/thermal_transfer2/wish/178155242 2017-07-06 03:00:43 UTC https://padlet.com/cvsschan/thermal_transfer2/wish/178155242