Ahousehold refrigerator that has a power input of 200 w and a cop of 1.3 is to cool 7 cucumbers, 0.3 kg each, to 9 °c. if the cucumbers are initially at 25°c, determine how long it will take for the refrigerator to cool them. the cucumbers can be treated as water whose specific heat is 4.2 kj/kg-°c. a. draw a schematic representation of the system with all the energy interactions involved. (3pts) b. calculate the amount of heat that needs to be removed from the cucumbers, in kl. (hint: use the specific heat) (3 pts) c. calculate the heat rejection rate (qh) of the refrigerator. (3 pts) d. calculate the time required to cool the cucumbers at the desired temperature.

i mean i gues

explanation:

answer:

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the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

d. attempt to find the owner, then leave your information if you cannot find them.

explanation:

d. represents both (b) and (c).

more logical as well.

b and c are to complicated.

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