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2. Draw a heating curve for 1 mol of a compound beginning at 170K and ending...
11. The following would be required for calculations of heat flow in which of the heating...
11. The following would be required for calculations of heat flow in which of the heating curve steps ? Molar heat of vaporization of water (AH vap = 40.7 kJ/mol) Specific heat of ice (Cice = 2.09 J/g °C) Molar heat of fusion of water (AH fus = 6.02 kJ/mol) Specific heat of water (C H20 = 4.18 J/g °C) Specific heat of steam(C steam = 2.01 J/g °C) Heating Curve for Water Degrees Celsius -50+ 0 400 800 1200...
4. Use the following data to sketch a heating curve for 1 mole of methanol. Start...
4. Use the following data to sketch a heating curve for 1 mole of methanol. Start the curve at -100°C and end it at 100°C Boiling point: 65 c; Melting point: -94*C; AHvap: 37 kJ/moI; AHsus: 3.18 kJ/mol; Molar heat capacities, liquid: 81.1 J/(mo*C), gas: 43.9 J/(mol*C), solid: 48.7 J/(mol°C)
Consider the sudden evaporation of 86.2 g of hexane (C6H14) at a temperature of 346 K...
Consider the sudden evaporation of 86.2 g of hexane (C6H14) at a temperature of 346 K and 1.0 bar pressure. Thermodynamic data for hexane: Boiling point = 342 K; melting point = 178 K, molar mass = 86.2 g/ mol; Cpo (C6H14(e)] - 143.3 J/(mol K), Cpo (C6H14(0] = 196.2 J/mol K), Standard enthalpy of fusion at 178 K, AfusHO(C6H14) = 9.57 kJ/mol Standard enthalpy of evaporation at 342 K, AvapH0[C6H14] = 28.85 kJ/mol a) Calculate AH associated with the...
The AH yap of a certain compound is 33.00 kJ - mol-' and its AS vap...
The AH yap of a certain compound is 33.00 kJ - mol-' and its AS vap is 91.59 J. mol-. K-I. What is the boiling point of this compound? boiling point:
The AH vap of a certain compound is 31.90 kJ. mol-' and its AS vap is...
The AH vap of a certain compound is 31.90 kJ. mol-' and its AS vap is 73.92 J. mol-.K-! What is the boiling point of this compound? boiling point: °C
3. The heat of vaporization of a compound is 512 kJ/mol. When 1.28 mol of this...
3. The heat of vaporization of a compound is 512 kJ/mol. When 1.28 mol of this compound vaporize at standard pressure, the entropy increases from 1243 J/K to 1751 J/K. What is the melting point of this compound at standard pressure to three significant figures? A) 1290 K B) 1010 K C) 787 K D) 292 K E) 412 K
5.) The following is a heating curve for I mole of an unknown substance. Answer the...
5.) The following is a heating curve for I mole of an unknown substance. Answer the following on the basis of this diagram. 350 Temperature (K) Vapor 0 10 50 60 20 30 40 Heal added (J/mol) a.) Estimate the heat of vaporization for this substance. MO b.) Estimate the heat capacity of the solid of this substance in J/mol-K 10.87 MOL malu c.) Estimate the boiling point of this substance.
Consider the data in the table. Compound Melting point (°C) AHfus (kJ/mol) Boiling point (°C) AH...
Consider the data in the table. Compound Melting point (°C) AHfus (kJ/mol) Boiling point (°C) AH ap (kJ/mol) HF -83.11 4.577 19.54 25.18 НСІ -114.3 1.991 -84.9 17.53 HBr - 86.96 2.406 -67.0 19.27 HI -50.91 2.871 -35.38 21.16 Using the data in the table, calculate ASfus and ASvap for HI. ASfus = J/(K.mol) AS vap = J/(K · mol) Determine the entropy change when 6.50 mol HI(1) boils at atmospheric pressure. AS = J/K
Select all accurate statements about the heating curve shown for ethanol (C)H,OH). C2H5OH 46.07 g/mol 161...
Select all accurate statements about the heating curve shown for ethanol (C)H,OH). C2H5OH 46.07 g/mol 161 C AHvap 42.59KJ/mol 78.5 AHfus A 5.021 kJ/mol Boiling Point 78.5°C Heat Added Freezing Point -117.3°C Specific Heat Capacity (c) of liquid 2.42 J/g°C Specific Heat 1.42 J/g°C Capacity (c) of gas Temperature (C) B The portion of the heating curve labeled "A represents the increase in the average kinetic energy of the liquid phase of ethanol. The portion of the heating curve labeled...
Consider the data in the table. Compound Melting point (°C) AH (kJ/mol) Boiling point (°C) AHap...
Consider the data in the table. Compound Melting point (°C) AH (kJ/mol) Boiling point (°C) AHap (kJ/mol HF -83.11 4.577 19.54 25.18 HCI -114.3 1.991 -84.9 17.53 HBr -86.96 -67.0 19.27 HI -50.91 -50.91 2.871 -35.38 21.16 Using the data in the table, calculate ASfus and AS vap for HI. 2.406 A Stus = 24.1 J/(K mol) ASvap = J/(K.mol) Determine the entropy change when 7.50 mol HI(1) freezes at atmospheric pressure. AS = J/K Question Source: MRG - General...
11. The following would be required for calculations of heat flow in which of the heating curve steps ? Molar heat of vaporization of water (AH vap = 40.7 kJ/mol) Specific heat of ice (Cice = 2.09 J/g °C) Molar heat of fusion of water (AH fus = 6.02 kJ/mol) Specific heat of water (C H20 = 4.18 J/g °C) Specific heat of steam(C steam = 2.01 J/g °C) Heating Curve for Water Degrees Celsius -50+ 0 400 800 1200...
4. Use the following data to sketch a heating curve for 1 mole of methanol. Start the curve at -100°C and end it at 100°C Boiling point: 65 c; Melting point: -94*C; AHvap: 37 kJ/moI; AHsus: 3.18 kJ/mol; Molar heat capacities, liquid: 81.1 J/(mo*C), gas: 43.9 J/(mol*C), solid: 48.7 J/(mol°C)
Consider the sudden evaporation of 86.2 g of hexane (C6H14) at a temperature of 346 K and 1.0 bar pressure. Thermodynamic data for hexane: Boiling point = 342 K; melting point = 178 K, molar mass = 86.2 g/ mol; Cpo (C6H14(e)] - 143.3 J/(mol K), Cpo (C6H14(0] = 196.2 J/mol K), Standard enthalpy of fusion at 178 K, AfusHO(C6H14) = 9.57 kJ/mol Standard enthalpy of evaporation at 342 K, AvapH0[C6H14] = 28.85 kJ/mol a) Calculate AH associated with the...
The AH yap of a certain compound is 33.00 kJ - mol-' and its AS vap is 91.59 J. mol-. K-I. What is the boiling point of this compound? boiling point:
The AH vap of a certain compound is 31.90 kJ. mol-' and its AS vap is 73.92 J. mol-.K-! What is the boiling point of this compound? boiling point: °C
3. The heat of vaporization of a compound is 512 kJ/mol. When 1.28 mol of this compound vaporize at standard pressure, the entropy increases from 1243 J/K to 1751 J/K. What is the melting point of this compound at standard pressure to three significant figures? A) 1290 K B) 1010 K C) 787 K D) 292 K E) 412 K
5.) The following is a heating curve for I mole of an unknown substance. Answer the following on the basis of this diagram. 350 Temperature (K) Vapor 0 10 50 60 20 30 40 Heal added (J/mol) a.) Estimate the heat of vaporization for this substance. MO b.) Estimate the heat capacity of the solid of this substance in J/mol-K 10.87 MOL malu c.) Estimate the boiling point of this substance.
Consider the data in the table. Compound Melting point (°C) AHfus (kJ/mol) Boiling point (°C) AH ap (kJ/mol) HF -83.11 4.577 19.54 25.18 НСІ -114.3 1.991 -84.9 17.53 HBr - 86.96 2.406 -67.0 19.27 HI -50.91 2.871 -35.38 21.16 Using the data in the table, calculate ASfus and ASvap for HI. ASfus = J/(K.mol) AS vap = J/(K · mol) Determine the entropy change when 6.50 mol HI(1) boils at atmospheric pressure. AS = J/K
Select all accurate statements about the heating curve shown for ethanol (C)H,OH). C2H5OH 46.07 g/mol 161 C AHvap 42.59KJ/mol 78.5 AHfus A 5.021 kJ/mol Boiling Point 78.5°C Heat Added Freezing Point -117.3°C Specific Heat Capacity (c) of liquid 2.42 J/g°C Specific Heat 1.42 J/g°C Capacity (c) of gas Temperature (C) B The portion of the heating curve labeled "A represents the increase in the average kinetic energy of the liquid phase of ethanol. The portion of the heating curve labeled...
Consider the data in the table. Compound Melting point (°C) AH (kJ/mol) Boiling point (°C) AHap (kJ/mol HF -83.11 4.577 19.54 25.18 HCI -114.3 1.991 -84.9 17.53 HBr -86.96 -67.0 19.27 HI -50.91 -50.91 2.871 -35.38 21.16 Using the data in the table, calculate ASfus and AS vap for HI. 2.406 A Stus = 24.1 J/(K mol) ASvap = J/(K.mol) Determine the entropy change when 7.50 mol HI(1) freezes at atmospheric pressure. AS = J/K Question Source: MRG - General...
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