Author Question: A 3.00-kg block of silicon at 60.0C is immersed in 6.00 kg of mercury at 20.0C. What is the entropy ... (Read 8 times)

mspears3 · **on:** Jul 29, 2018

A 3.00-kg block of silicon at 60.0C is immersed in 6.00 kg of mercury at 20.0C. What is the entropy increase of this system as it moves to equilibrium?

The specific heat of silicon is 0.17 cal/(gK) and the specific heat of mercury is 0.033 cal/(gK).
A)

8.8 10-1 J/K
B)

4.8 J/K
C)

6.9 J/K
D)

5.2 10-2 J/K
E)

-0.46 J/K

Question 2

How many significant figures are in 0.00054?

A)

2

B)

3

C)

4

D)

5

E)

6