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What is the change in entropy when a solid substance decomposes and produces gaseous products?
no
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What aspect of a substance contributes to a high or low entropy?
The complexity or disorder of a substance contributes to its entropy. A substance with more possible arrangements of its particles has higher entropy, while a substance with limited arrangements has lower entropy.
What aspect of a substance contributes to high or a low entropy?
thermodynamics
Does the entropy of ice at 0 degrees C differ from the entropy of ice at -50 degrees C?
50
True or False A large positive value of entropy tends to favor products of a chemical reaction?
True, a large positive value of entropy tends to favor products of a chemical reaction. However, entropy can be offset by enthalpy; a large positive value of enthalpy tends to favor the reactants of a chemical reaction. The true measure to determine which side of a chemical reaction is favored is the change in Gibbs' free energy, which accounts for both entropy and enthalpy, as calculated by: Change in Gibbs = Change in Enthalpy - Temp in Kelvin * Change in Entropy A negative value of Gibbs free energy will always favour the products of a chemical reaction.
When graphing enthalpy and entropy what variables are included?
In a graph of enthalpy versus temperature, the enthalpy of a substance is plotted on the y-axis, while the temperature is plotted on the x-axis. When graphing entropy versus temperature, the entropy of a substance is plotted on the y-axis while the temperature is plotted on the x-axis.
What is the change in entropy (S) when a solid substance decomposes and produces gaseous products?
no
What aspect of a substance contributes to a high or low entropy?
The complexity or disorder of a substance contributes to its entropy. A substance with more possible arrangements of its particles has higher entropy, while a substance with limited arrangements has lower entropy.
How does the entropy change in the reaction 2c3h6g 9o2g 6co2g 6h2og?
The entropy change in a reaction can be calculated by comparing the entropy of the products to the entropy of the reactants. Without specific entropy values provided, it is difficult to determine the exact change. However, in general, the entropy change is positive in reactions where the products have higher entropy than the reactants, indicating an increase in disorder.
What would happen to the entropy in the reaction 203g 302g?
The increase in entropy will depend on the physical states of the reactants and products. If the reactants are solid and the products are gaseous, there will likely be an increase in entropy due to the increase in disorder. However, if both the reactants and products are in the same state, the change in entropy may be minimal.
What is the formula to calculate deltaS?
Delta S= Sum of Entropy(products)- Sum of Entropy(reactants.
What aspect of a substance contributes to a high or a low entropy?
heat
What aspect of a substance contributes to high or a low entropy?
thermodynamics
What characteristics of a substance is NOT affected by enthalpy and entropy?
Pressure is not affected by enthalpy and entropy.pressure
Does the entropy of ice at 0 degrees C differ from the entropy of ice at -50 degrees C?
50
Does entropy increase or decrease due to friction?
Entropy increases due to friction. Friction generates heat, which increases the overall disorder or randomness of the system, leading to an increase in entropy.
True or False A large positive value of entropy tends to favor products of a chemical reaction?
True, a large positive value of entropy tends to favor products of a chemical reaction. However, entropy can be offset by enthalpy; a large positive value of enthalpy tends to favor the reactants of a chemical reaction. The true measure to determine which side of a chemical reaction is favored is the change in Gibbs' free energy, which accounts for both entropy and enthalpy, as calculated by: Change in Gibbs = Change in Enthalpy - Temp in Kelvin * Change in Entropy A negative value of Gibbs free energy will always favour the products of a chemical reaction.
What is the entropy at critical point?
The total entropy of steam at critical pressure and temperature is equal to 1.0785 btu/lb. (as liquid water does not exist at critical pressure and temperature the entropy of liquid is 0) *from Elementary Steam Power Engineering, E. McNaughton, 1923
