Hydrogen sulfide is a pollutant found in natural gas. Following its removal, it is convened to sulfur by the reaction 2 H 2 S ( g ) + SO 2 ( g ) ⇌ 3 8 S 8 ( s , rhombic ) + 2 H 2 O ( l ) . What is the equilibrium constant for this reaction? Is the reaction endothermic or exothermic?
Hydrogen sulfide is a pollutant found in natural gas. Following its removal, it is convened to sulfur by the reaction 2 H 2 S ( g ) + SO 2 ( g ) ⇌ 3 8 S 8 ( s , rhombic ) + 2 H 2 O ( l ) . What is the equilibrium constant for this reaction? Is the reaction endothermic or exothermic?
Hydrogen sulfide is a pollutant found in natural gas. Following its removal, it is convened to sulfur by the reaction
2
H
2
S
(
g
)
+
SO
2
(
g
)
⇌
3
8
S
8
(
s
,
rhombic
)
+
2
H
2
O
(
l
)
. What is the equilibrium constant for this reaction? Is the reaction endothermic or exothermic?
1. Show that the change in entropy for a fixed amount of ideal gas held at a constant
temperature undergoing a volume change is given by the simple equation
AS = NkB In
Hint: Start with the equation
M
dS =
du + (Œ) dv - Ž (#) an,
dU
du+av-dN;
j=1
Why doesn't the equation for the entropy of an ideal gas depend on the strength of the
intermolecular forces for the gas?
2. Make an ice cube at 1 bar pressure by freezing an amount of liquid water that is 2
cm x 2 cm x 2 cm in volume. The density of liquid water at 0 °C is 1.000 g cm³ and the
density of ice at 0 °C is 0.915 g cm³. Note that this difference in density is the reason
your water pipes burst if they freeze and why you shouldn't forget to take your bottle of
pop out of the freezer if you put it in there to try and cool it down faster.
A. What is the work of expansion upon freezing?
B. Is work done on the system or by the system?
I have a excitation/emission spectra of a quinine standard solution here, and I'm having trouble interpreting it. the red line is emission the blue line is excitation. i'm having trouble interpreting properly. just want to know if there is any evidence of raman or rayleigh peaks in the spectra.
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