E ENTROPY AND FREE ENERGY Calculating dG from dH and dS A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 98.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free erfergy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. MgCl, ()+ H₂O()- MgO() + 2HC1(e) PO () + 6H₂O() - 4H, PO () Explanation Check 26 **** AH = 140, KJ AS = 316. AG= Which is spontaneous? O this reaction O the reverse reaction O neither AH = -439, KJ K AS = -0-/22 AG = 0. KJ Which is spontaneous? O this reaction O the reverse reaction O neither (a tv 2 X Lara V Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility A @ So

A chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 91.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH = 439. kJ J AS = 1206. K AG = || kJ 4H,PO,(s) → P,0,10 (s) + 6H,0(1) Which is spontaneous? this reaction the reverse reaction neither AH = -803. kJ J AS = K AG = -4. kJ CH, (3) +…

A chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 25.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH = 1005. kJ AS = 3281. K AG = 4PF, (g) + 10H, (3) - P (s) + 20HF (g) Which is spontaneous? O this reaction the reverse reaction O neither AH = 1648. kJ AS = AG = 0. kJ 2Fe, 0, (5)…

A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 51.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. 6C(s) + 6H2(g) + 30, (g) C6H12O6 (5) AH=1237. kJ AS = -3816. K 2CO2(g) 4H.O(g) → 2CH, OH (g) + 302(g) AG= kJ Which is spontaneous? this reaction the reverse reaction neither AH =…

4PC13 (9) P4(g) + 6C₁₂ (g) → C₂H₂ (g) + 502(g) → 3CO2(g) + 3CO2(g) + 4H2O(1) AH 1207. kJ AS = 3078. J - K AG = kJ Which is spontaneous? this reaction the reverse reaction neither ΔΗ = - 2220. ΚΙ AS = K AG = 20. kJ Which is spontaneous? this reaction the reverse reaction neither

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In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 106.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. 4H, PO () PO () + 6H₂O(0) 6C(s) + 6H₂(e) + 30,(e) - CH₂0,6) Alf 439 kJ AS 1091 - k AG= J Which is spontaneous? this reaction the reverse reaction neither AH-1237 13 AS= AG=-14. U Which is spontaneous? this reaction the reverse reaction neither

At 298 K, this reaction to produce phosphoryl chloride has a standard enthalpy of A,H° = -620.2 kJ mol-¹. 2 PCI (g) + O₂(g) → 2 POCI3(1) The standard molar entropies, in J K-1 mol-1, for these species are: PC13(g) [308.5]; O2(g) [205.1]; POCI3(1) [215]. What is the standard Gibbs energy of reaction at 298 K? (Note: Some of these numbers have been changed from their actual values for the purpose of the exam.) (Determine answer in units of kJ/mol with one decimal place. However, do not enter units with your answer.)

A chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 106.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. MgO (s) + 2HC1(g) → MgCl₂ (s) + H₂O (1) P₁(s) + 20HF (g) → - 4PF₂ (g) + 10H₂(g) AH-140. kJ AS 454. AG = OKJ Which is spontaneous? Othis reaction AS = K the reverse reaction O…

A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 20.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. AH = - - 1212. kJ J AS 4174. K Ś ? AG = 4H₂O₂ (1) + PbS (s) PbSO4 (s) + 4H₂O (1) ☐ kJ Which is spontaneous? this reaction the reverse reaction neither - 1237. KJ 6C (s) + 6H₂(g) + 30₂…