Answer:
(a). Entropy change of refrigerant is = 0.7077 
(b). Entropy change of cooled space 
(c). Total entropy change is dS = 0.0232
Explanation:
Given data
Saturation pressure = 140 K pa
Saturation temperature from property table
= - 18.77 °c = - 18.77 + 273 = 254.23 K
(a). Entropy change of refrigerant is given by
Since heat absorbed by refrigerant Q = 180 KJ
dS = 0.7077
(b). Entropy change of cooled space
= - 10 °c = 263 K
(c). Total entropy change is given by
dS = 0.7077 - 0.6844
dS = 0.0232
This is the value of total entropy change.
Answer:
option B
Explanation:
given,
heating tap water from 16° C to 50° C
at the average rate of 0.2 kg/min
the COP of this heat pump is 2.8
power output = ?
the required power input is 0.169 kW or 0.17 kW
hence, the correct answer is option B
Answer:
The symbols are to be noted on the title sheet or other introductory sheet of the plans.
Explanation:
in able to be understood for example a map key is always on a map so the reader can use it efficently without confusion
Answer:
you might be facing some difficulty in observing this point of division between your question and me
