Answer to Question #90474 in Physics for Alex

Question

1. You mix two sample of water. Sample A is 200g at 20oC. Sample B is 100g at 95oC. Calculate total change in entropy of the process. Assume that specific heat of water is 4190 J·g-1·K-1
2. Making a glass of Brown Sugar Bubble Milk uses 1/4 L of 85.0°C water before cooling it down to room temperature at 27.0°C.
a) Calculate the entropy change of the milk while it cools, the specific heat of water is 4190 J·g-1·K-1
b) Calculate the change in entropy of the air while the milk cools, if all the heat lost by the water goes into the air, and the cooling process is virtually isothermal for the air.
c) What is the total entropy change of the system (milk + air)? Explain the meaning of the result.

Answer 1

Dear Alex, your question requires a lot of work, which neither of our experts is ready to perform for free. We advise you to convert it to a fully qualified order and we will try to help you. Please click the link below to proceed: Submit order