Please do not solve the question in the 2nd image. From image 1, Total entropy change: Ssystem + Ssurrounding = Sisolated What does it mean by Ssystem and Ssurrounding? Able to explain it using the...

Please do not solve the question in the 2nd image.

From image 1,

Total entropy change:

Ssystem + Ssurrounding = Sisolated

What does it mean by Ssystem and Ssurrounding? Able to explain it using the question shown in the 2nd image? Is the question asking to find Ssystem or Ssurrounding?

i am able to obtain the answer by finding the Rate of Entropy change in the high Temperature side and low temperature side. But i do not know whether it is the entropy for the system or surrounding.

0 =S gen "/>
Extracted text: Total entropy change in this “isolated system" is AS system + AS surroundigs = AS. isolated >0 =S gen


Extracted text: 3. A completely reversible heat pump produces heat at a rate of 300 kW to warm a house maintained at 24 °C. The exterior air which is 24°C at 7 °C serves as a source. Calculate the rate of entropy change of the two reservoirs and determine if this heat pump satisfies the second law according to the increase of entropy principle. 300 kW Win HP [Ans: 1.01 kW/K, -1.01 kW/k, 0 kW/K] 7°C