► View Available Hint(s) 1 mol of oxygen gas at 273 K and 40 L Greatest entropy 1/2 mol of neon gas at 100 K and 20 L The correct ranking cannot be determined. 1 mol of neon gas at 273 K and 40 L 1/2 mol of neon gas at 273 K and 20 L 1/2 mol of liquid neon at 100 K 1 mol of carbon disulfide gas at 273 K and 40 L Reset 1 mol of neon gas at 273 K and 20 L Help Least entropy

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5. Which of the following do you expect to have the largest molar entropy at 25 °C? a) H₂O (liq) b) H₂O (s) c) O₂ (g) d) CCl4 (g) e) same for all the cases

For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy  S  of the system, decrease  S , or leave  S  unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System Change S A few moles of carbon dioxide (CO2) gas. The carbon dioxide is heated from 9.0 °C to 36.0 °C and also expands from a volume of 6.0 L to a volume of 14.0 L.     <S0     =S0     >S0     not enough information A few moles of helium (He) gas. The helium expands from a volume of 9.0 L to a volume of 15.0 L while the temperature is held constant at 20.0 °C.     <S0     =S0     >S0     not enough information A few grams of liquid ammonia (NH3). The ammonia is heated from -1.0 °C to 2.0 °C.     <S0…

D Try Again Your answer is incorrect. Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A • reaction A: Your answer is incorrect. • reaction C: Your answer is incorrect. B с observations The reverse of this reaction is always spontaneous. This reaction is exothermic and proceeds slower at temperatures below -26. °C. This reaction is always spontaneous, but proceeds faster at temperatures above 139. °C. AH is AS is conclusions AH is As is AH is AS is X unknown negative ŷ negative ↑ unknown î unknown ↑ positive î S

Enter your answer in the provided box. Calculate the standard entropy change for the following reaction at 25°C. S(rhombic) + O:(g) - so:g) K'mol S(rhombie) 31.S8 205.0 248.5 J/K-mol

Determine the entropy change in each of the following processes: 4a. One mole of an ideal gas is allowed to expand from a volume of 1.50 L to 15.0 L at 298 K. 4b. 10 grams of methanol vapor, initially at its normal boiling temperature of 337 K, is allowed to condense and cool to a liquid at a final temperature of 298 K.

Number 4 part b

For each pair listed below, which choice has the substance with the highest entropy listed first? O2(g), air (a mixture of O2 and N2 gases) CH4(g), C3H3(g) NO(g), NO2(1) Li(s) @ 25 K, Li(s) @ 25 °C

Which of the following represents a process that is always spontaneous? ASsys: negative ASsurr: negative ASsys: positive ASsurr: positive ASsys: positive ASsurr: negative ASsys: negative ASsurr: positive