Suppose you want to operate an ideal refrigerator with a cold temperature of -10.0ºc , and you would like it to have a coefficient of performance of 7. 00. what is the hot reservoir temperature for such a refrigerator? (answer in ºc)

The hot reservoir temperature for the refrigerator is °.

Explanation:

Given:

Cold temperature °.

Coefficient of performance =

Step 1:

Temperature of hot reservoir

Temperature of cold reservoir (in Kelvin)

Efficiency of the refrigerator

Coefficient of performance

From the formula,

Step 2:

Substitute the values,

Step 3:

Convert into celsius,

°

Therefore, the hot reservoir temperature for the refrigerator is °.

To learn more:

answer: a. same unit

explanation:

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg