
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Find
Δ
S
o
|
|
for the formation of 1 mole of
Cu2O(s)
from its elements.
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- For the combustion of CH4 into CO2 and H2O vapor, do you expect ΔS to be positive or negative for this reaction?arrow_forwardFind Δ S o for the formation of 1 mole of HI(g) from its elements.arrow_forward■ The disorder in a solid is greater than that in a liquid. ( ✓ or X ) ■ The tendency of a process to occur naturally is called equilibrium. (✓ or X ) ▪ A spontaneous change happens unidirectional or in one way. For a reverse change to occur, work always has to be done. (✓ or X) ■ For a spontaneous change to occur, time is not a factor. A spontaneous reaction can be a rapid or very slow reaction. (✓or X ) ■ If the system is not in the equilibrium, a spontaneous change is unavoidable. The change will continue until the system reaches the state of equilibrium. (✓or X ) ■ Thermal heat transfers between cold and hot reservoirs in both directions. (✓ or X ) ■ Absolute zero kelvin is attainable. (✓or X)arrow_forward
- 8. The following constant pressure process occurs spontaneously when the system, initially at a different temperature from its surroundings, attains the same final temperature as the surroundings. Ar(g, 28 °C, 1 atm) ⟶ Ar(g, 70 °C, 1 atm) Which of the following statements about this process is/are correct? You may choose more than one, or none, of the statements. The entropy of the system increases: ΔS > 0. The entropy of the surroundings increases: ΔSsurr > 0. The entropy of the universe increases: ΔSuniv > 0. Work is done by the system on the surroundings. Heat flows from the system into the surroundings.arrow_forwardFor a particular chemical reaction, ΔH = 4.3 kJ and ΔS = –19 J/K. Under what temperature condition is the reaction spontaneous?arrow_forwardCalculate the standard enthalpy change for the reaction at 25 °C. Standard enthalpy of formation values can be found in this list of thermodynamic properties. MgCl₂ (s) + H₂O(1) AH;xn= V → B MgO(s) + 2 HCl(g) MacBook Air H N M 1 9 DD $10 P m kJarrow_forward
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