Kanchan carried out an experiment in which she put one end of four rods P,Q,RandS made up of iron, copper, carbon and zinc respectively into a container filled with boiling water. After 15 minutes, she recorded the temperature at the undipped ends of all rods. Which rod will show the lowest temperature?
Kanchan carried out an experiment in which she put one end of four rods P,Q,RandS made up of iron, copper, carbon and zinc respectively into a container filled with boiling water. After 15 minutes, she recorded the temperature at the undipped ends of all rods. Which rod will show the lowest temperature?
The correct option is D R
1) R(carbon)
2) Basically, Kanchan's experiment's transfer of heat takes place.
3) Heat always flows from a region of higher temperature to a region of lower temperature.
4) Metals are usually the best conductors of thermal energy. This is due to the way that metals are chemically bonded: metallic bonds (as opposed to covalent or ionic bonds) have free-moving electrons which are able to transfer thermal energy rapidly through the metal.
5) Since carbon is non-metal ,it has less free moving electrons for transmission therefore other end of carbon rod has the lowest temperature.
1) R(carbon)
2) Basically, Kanchan's experiment's transfer of heat takes place.
3) Heat always flows from a region of higher temperature to a region of lower temperature.
4) Metals are usually the best conductors of thermal energy. This is due to the way that metals are chemically bonded: metallic bonds (as opposed to covalent or ionic bonds) have free-moving electrons which are able to transfer thermal energy rapidly through the metal.
5) Since carbon is non-metal ,it has less free moving electrons for transmission therefore other end of carbon rod has the lowest temperature.
