Homework Answers
If the number of particles decreases, the entropy should decrease if the temperature is constant. But here no such condition on the temperature is specified. So, the most correct answer is
c. Dependent on the temperature of the substance.
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If the number of particles of a substance decreases then the change in entropy of the...
If a substance's temperature has decreased then the change in entropy is: a. Negative b. No...
If a substance's temperature has decreased then the change in entropy is: a. Negative b. No change c. Dependent on the substance. d. Dependent on the enthalpy change. e. Positive
How does the molar entropy of a substance change with increasing temperature? A) The molar entropy of a substance in...
How does the molar entropy of a substance change with increasing temperature? A) The molar entropy of a substance increases with increasing temperatures. B) The molar entropy of a substance decreases with increasing temperatures.
The change in entropy, ASiam, is related to the the change in the number of moles...
The change in entropy, ASiam, is related to the the change in the number of moles of gas molecules, Ang. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change A. K(s) + O2(%) KO,(s) The entropy, AS Ang- mol increases. decreases has little or no change. B. H,0,(1) H,(8) +0,(€) The entropy, A.SE increases B. H2O2(1) → H2(g) + O2(g) The entropy, AS...
The change in entropy, ASP, is related to the the change in the number of moles...
The change in entropy, ASP, is related to the the change in the number of moles of gas molecules, Ang. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. 2 H, (8) +0,(8) ► 2H, 0(1) The entropy, AS Ang = mol O decreases. has little or no change. O increases. B. CO(g) +3 H,(g) – CH (8) + H,(g) The entropy,...
A substance melts with an enthalpy change of 75 kJ/mol and an entropy change of 98...
A substance melts with an enthalpy change of 75 kJ/mol and an entropy change of 98 J/K.mol. What is its melting temperature? A) 0.77 K B) 765 K C) 1.69 K D) 425 K E) 591 K
Please give me the answer and the reason. TCO1 MO2 Calculate the temperature change produced by...
Please give me the answer and the reason.
TCO1 MO2 Calculate the temperature change produced by 387 J of heat transferred to 32.0 g of copper (atomic mass 63.5 g/mol, Cp = 24.44 J/K/mol) at constant pressure. Select one: O a. 304.6K O b.-304.6K C. 0.00779 K d. 0.0318 °C e. 31.4 °C Which of the following can decrease the entropy of a substance? Select one: a. Changing phase from a solid to a liquid. b. Increasing the temperature. c....
The change in entropy, ASixn, is related to the the change in the number of moles...
The change in entropy, ASixn, is related to the the change in the number of moles of gas molecules, Angas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. C(s) + H2O(g) → CO(g) + H2(g) The entropy, ASixn Angas = Angos =D mol has little or no change. increases. decreases. B. CO(g) + 3H2(g) = CH(g) + H2(g) The entropy, ASixn...
The change in entropy, ΔS°rxn, is related to the the change in the number of moles...
The change in entropy, ΔS°rxn, is related to the the change in the number of moles of gas molecules, Δngas. Determine the change in the moles of gas for each of the following reactions and decide if the entropy increases, decreases, or has little or no change. a) 2H2(g) +O2(g)->2H2O b)C2H4(g) +H2(g)-> C2H6(g) c) CH4(g) + 2O2(g) -> CO2(g)+2H2O(l) d) PCL5(s)--> PCL3(l) + CL2(g)
Diamond will spontaneously change to graphite because: Select one: O a. it is a process that...
Diamond will spontaneously change to graphite because: Select one: O a. it is a process that decreases the energy of the universe. O b. it is process that increases the entropy of the universe. O c. the entropy of the universe must be conserved. O d. it is a process that decreases the entropy of the universe. o e. it is a process that increases the energy of the universe.
The change in entropy, ASiam, is related to the the change in the number of moles of gas molecules, Ang. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change A. K(s) + O2(%) KO,(s) The entropy, AS Ang- mol increases. decreases has little or no change. B. H,0,(1) H,(8) +0,(€) The entropy, A.SE increases B. H2O2(1) → H2(g) + O2(g) The entropy, AS...
The change in entropy, ASP, is related to the the change in the number of moles of gas molecules, Ang. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. 2 H, (8) +0,(8) ► 2H, 0(1) The entropy, AS Ang = mol O decreases. has little or no change. O increases. B. CO(g) +3 H,(g) – CH (8) + H,(g) The entropy,...
Please give me the answer and the reason.
TCO1 MO2 Calculate the temperature change produced by 387 J of heat transferred to 32.0 g of copper (atomic mass 63.5 g/mol, Cp = 24.44 J/K/mol) at constant pressure. Select one: O a. 304.6K O b.-304.6K C. 0.00779 K d. 0.0318 °C e. 31.4 °C Which of the following can decrease the entropy of a substance? Select one: a. Changing phase from a solid to a liquid. b. Increasing the temperature. c....
The change in entropy, ASixn, is related to the the change in the number of moles of gas molecules, Angas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. C(s) + H2O(g) → CO(g) + H2(g) The entropy, ASixn Angas = Angos =D mol has little or no change. increases. decreases. B. CO(g) + 3H2(g) = CH(g) + H2(g) The entropy, ASixn...
Diamond will spontaneously change to graphite because: Select one: O a. it is a process that decreases the energy of the universe. O b. it is process that increases the entropy of the universe. O c. the entropy of the universe must be conserved. O d. it is a process that decreases the entropy of the universe. o e. it is a process that increases the energy of the universe.
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