contestada

Jayla and her grandma are designing a lunchbox. The lunchbox will be made out
of thin fabric and a zipper, with an extra layer of material to help keep food cold
all morning, Jayla is deciding whether the extra layer of material will be foam or
rubber. The specific heat capacity of each material is shown in the table,
Material Specific Heat Capacity ulkgoc)
Foam
2360
Rubber
1250
Using the data, explain which material would be BEST to include in the
lunchbox
A. The best material to use is rubber, since it is the best conductor. A conductor will help
increase the transfer of heat from inside of the lunchbox to outside of the lunchbox
B. The best material to use is rubber, since it is the best insulator. An insulator will help slow
the transfer of heat from outside of the lunchbox to inside of the lunchbox,
C. The best material to use is foam, since it is the best conductor. A conductor will help
increase the transfer of heat from inside of the lunchbox to outside of the lunchbox
D. The best material to use is foam, since it is the best insulator. An insulator will help slow the
transfer of heat from outside of the lunchbox to inside of the lunchbox

Respuesta :

The best material to use is foam, since it is the best insulator. An insulator will help slow the transfer of heat from outside of the lunchbox to inside of the lunchbox. The extra layer will be of foam.

Explanation:

If we compare the specific heat capacity of rubber and foam it can be found that foam has high specific heat capacity, which indicates that it is the good insulator.

An insulator is a substance in which heat exchange between medium and surrounding is very low.

Jayla and her grandma wanted their food to be cold all morning so foam as an insulator is the best choice.

Thus, high specific heat energy means large amount of energy required to raise the temperature by 1 degree in response to the mass of the substance as per unit mass.

Otras preguntas