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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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
Transcribed Image Text:o Determine the AS surr when 9.01 g of steam→ liquid at
100°C
AHvap = 40.67 kJ/mol
• AS surr = -q/T
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- If AS at 25°C sys =-198.3 J/K, is the reaction spontaneous N2 + 3H2 → 2NH3 • AS univ = AS sys + AS surr > ? AS surr (AHsys)/T Determine the AHrxn • AH° N2(g) = 0 kJ/mol • AH° H2(g) = 0 kJ/mol • AH°; NH3(g) = -46.19 kJ/molarrow_forwardFor the reaction given below, AH --1516 kJ at 25"C und AS--432.8 J/K at 25°C, This reaction is spontaneous SiH,(g) + 2 0:(g) SiO;()+2 H,0(6)arrow_forwardPlease provide fullarrow_forward
- Given the information A+ B → 2D AH° = -682.0 kJ AS° = 296.0 J/K С — D ΔΗ. 392.0 kJ AS = -103.0 J/K calculate AG at 298 K for the reaction А +В — 2C -251.60 AG kJ Incorrectarrow_forwardUsing standard the thermodynamic properties shown below estimate the normal boiling point of carbon disulfide (CS2). Molar Mass ΔΗ9 S° AG°f Kg/mol) (kJ/mol) J//mol-K)] kJ/mol) CS2lg) 76.143 115.3 237.8 65.1 CS2(e) 76.143 87.9 151.0 63.6 1st attempt See Hint °C = normal boiling point of CS2arrow_forwardSyngas can be burned directly or converted to methanol. Calculate AH° for the reaction CO(g) + 2H, (g) → CH3OH(1) You may need to use the following data: Eompound H; (kJ/mol) H2 (g) CH3OH(1) -239 CO(g) -110.5 AH kJarrow_forward
- Using the values in the table below, calculate AGxn at 375 K for the reaction: 3 CO g) + 4 NH3(g) → 3 CH3OH(g) + 2 N2(g) AH°F, kJ/mol AG°, kJ/mol S°, J/mol K COg) CH3OH(g) CH3OH NH3(aq) NH3(g) N2(9) -111 -137 198 -201 -162 238 -239 -166 127 -80 -27 111 -46 -17 193 192 +55 +15 -7 +100,414 +150arrow_forwarddetermine the enthaply chnage of vaporization for silicon tetrachloride. using the imagearrow_forwardFor the reaction C(s,graphite) + 02(g) CO2(g) AG° = -394.3 kJ and AS° = 2.9 J/K at 290 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 290 K. The standard enthalpy change for the reaction of 2.38 moles of C(s,graphite) at this temperature would be kJ.arrow_forward
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