A system consists of two very large thermal reservoirs in contact with each other, one at temperature 300C and the other at temperature 200C.
When 600 J of heat transfers from the 300C reservoir to the 200C reservoir, what is the change in entropy of this system?
A) 0.221 J/K
B) 1.00 J/K
C) 5.00 J/K
D) -1.00 J/K
E) -2.31 J/K
Question 2
An ideal Carnot engine operates between reservoirs having temperatures of 125C and -20C. Each cycle the heat expelled by this engine is used to melt 30.0 g of ice at 0.00C.
The heat of fusion of water is 3.34 105 J/kg and the heat of vaporization of water is
2.25 106 J/kg.
(a) How much work does this engine do each cycle?
(b) How much heat per cycle does this engine absorb at the hot reservoir?
What will be an ideal response?
The skeletal system of a modern horse
The respiratory system.
The urinary system.
Fatty acid desaturation system
Endocrine System: Facts, Functions and Diseases
The Vascular System