An ice cube at 0°C is placed in a very large bathtub filled with water at 30°C and allowed to melt, causing no appreciable change in the temperature of the bath water. Which one of the following statements is true?
A) The entropy gained by the ice cube is equal to the entropy lost by the water.
B) The entropy lost by the ice cube is equal to the entropy gained by the water.
C) The net entropy change of the system (ice plus water) is zero because no heat was added to the system.
D) The entropy of the system (ice plus water) increases because the process is irreversible.
E) The entropy of the water does not change because its temperature did not change.
Answer: D
You might also like to view...
Pebbles of granite are very common in a conglomerate, whereas pebbles of marble are relatively uncommon. Why is this? What are the properties of the different minerals in these rocks?
What will be an ideal response?
An electron inside a hydrogen atom is confined to within a space of about 0.12 nm
What is the uncertainty in this electron's speed? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s) A) 3.1 × 105 m/s B) 3.1 km/s C) 4.8 × 106 m/s D) 4.8 m/s E) 9.6 × 105 m/s
At the microscopic level, electric currents in wires are due to
A) electromagnetic radiation. B) the great pumpkin. C) protons [and possibly other ions] traveling along the wire. D) atoms jiggling back and forth within the wire. E) electrons traveling along the wire.
A barge is 15.0 m wide and 75.0 m long and has vertical sides. The bottom of the hull is 1.20 m below the water surface. What is the weight of the barge and its cargo, if it is floating in fresh water of density 1000 kg/m3?
A) 22.6 MN B) 13.2 MN C) 1.35 MN D) 1.13 MN E) 11.3 MN