Author Question: A system consists of two thermal reservoirs in contact with each other, one at temperature 300C and ... (Read 49 times)

karateprodigy · **on:** Jul 29, 2018

A system consists of two thermal reservoirs in contact with each other, one at temperature 300C and the other at temperature 200C. 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

A 4.0-cm-tall object is placed 50.0 cm from a diverging lens of focal length 25.0 cm. What is the nature and location of the image?

A)

A real image, 4.0 cm tall, 20 cm other side of the object
B)

A virtual image, 4.0 cm tall, 20 cm other side of the object
C)

A virtual image, 2.0 cm tall, 10 cm other side of the object
D)

A virtual image, 1.3 cm tall, 16.7 cm same side as the object
E)

A real image, 1.3 cm tall, 16.7 cm same side as the object