A mixture of gases A 2 and B 2 are introduced to a slender metal cylinder that has one end closed and the other fitted with a piston that makes a gas-tight seal so that the gases are a closed system. The cylinder is submerged in a large beaker of water whose temperature is 25 °C, and a spark is used to trigger a reaction in the cylinder. At the completion of the reaction, the piston hasmoved downward, and the temperature of the water bath has increased to 28 °C. If we define the system as the gases inside the cylinder, which of the following best describes the signs of q, w, and SE for this reaction? q < 0, w< 0, ΔE< 0 q < 0, w> 0, ΔE< 0 q < 0, w> 0, the sign of ΔE cannot be determined from the information given q>0, w>0, ΔE> 0 q>0, w < 0, the sign ofΔE cannot be determined from the information given
A mixture of gases A 2 and B 2 are introduced to a slender metal cylinder that has one end closed and the other fitted with a piston that makes a gas-tight seal so that the gases are a closed system. The cylinder is submerged in a large beaker of water whose temperature is 25 °C, and a spark is used to trigger a reaction in the cylinder. At the completion of the reaction, the piston hasmoved downward, and the temperature of the water bath has increased to 28 °C. If we define the system as the gases inside the cylinder, which of the following best describes the signs of q, w, and SE for this reaction? q < 0, w< 0, ΔE< 0 q < 0, w> 0, ΔE< 0 q < 0, w> 0, the sign of ΔE cannot be determined from the information given q>0, w>0, ΔE> 0 q>0, w < 0, the sign ofΔE cannot be determined from the information given
A mixture of gases A2 and B2 are introduced to a slender metal cylinder that has one end closed and the other fitted with a piston that makes a gas-tight seal so that the gases are a closed system. The cylinder is submerged in a large beaker of water whose temperature is 25 °C, and a spark is used to trigger a reaction in the cylinder. At the completion of the reaction, the piston hasmoved downward, and the temperature of the water bath has increased to 28 °C. If we define the system as the gases inside the cylinder, which of the following best describes the signs of q, w, and SE for this reaction?
q< 0, w< 0, ΔE< 0
q< 0, w> 0, ΔE< 0
q< 0, w> 0, the sign of ΔE cannot be determined from the information given
q>0, w>0, ΔE>0
q>0, w< 0, the sign ofΔE cannot be determined from the information given
A mixture of 0.568 M H₂O, 0.438 M Cl₂O, and 0.710 M HClO are enclosed in a vessel at 25 °C.
H₂O(g) + C₁₂O(g) = 2 HOCl(g)
K = 0.0900 at 25°C
с
Calculate the equilibrium concentrations of each gas at 25 °C.
[H₂O]=
[C₁₂O]=
[HOCI]=
M
Σ
M
What units (if any) does the response factor (K) have? Does the response factor (K) depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)?
Provide the structure, circle or draw, of the monomeric unit found in the biological polymeric
materials given below.
HO
OH
amylose
OH
OH
행
3
HO
cellulose
OH
OH
OH
Ho
HO
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