CCl2F2 (Freon) is one of the refrigerants responsible for destroying part of the earths ozone layer....
CCl2F2 (Freon) is one of the refrigerants responsible for destroying part of the earths ozone layer. It has a Pvap of 40.0 mmHg at -81.6ºC and a Pvap =400 mmHg at -43.9ºC. What is the normal (P=1 atm)) boiling point of CCl2F2 in ºC?
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CCl2F2 (Freon) is one of the refrigerants responsible for
destroying part of the earths ozone layer....
The chlorofluorocarbon refrigerant Freon-12, CCl2F2, was banned in 1995 to help protect the ozone layer. Most...
The chlorofluorocarbon refrigerant Freon-12, CCl2F2, was banned in 1995 to help protect the ozone layer. Most new air conditioning units now use the re- frigerant tetrafluoroethane, CF3CH2F. The enthalpy of vaporization of Freon-12 is 155 Jg–1 and that of tet- rafluoroethane is 215.9 Jg–1. Estimate the number of grams of Freon-12 that must be vaporized to freeze a tray of 16 one-ounce (1 oz = 28 g) ice cubes with the water initially at 18°C. How many grams of tetrafluo-...
section a and b please full procedure, thank you 1) We'll start with a pair of...
section a and b please full procedure, thank you
1) We'll start with a pair of problems dealing with the Clapeyron equation that are adapted from Atkins & de Paula: a. Prior to the discovery that Freon-12 (CF2Cl2) was harmful to the Earth's ozone layer, it was frequently used as the dispersing agent in spray cans for hair spray, etc. Its enthalpy of vaporization at its normal boiling point of -29.2 °C is 20.25 kJ/mol. Estimate the pressure that a...
I need help on PART D. 11. An ideal solution is created by mixing A and...
I need help on PART D.
11. An ideal solution is created by mixing A and B in the molar ratio 1:4. The mixture has a normal boiling point at 75 °C a. Given that the vapor pressure about pure A at 85 °C is 0.81 atm, what is the vapor pressure (in atm) of A above the mixture? b. What is the vapor pressure of B above the mixture? c. What would be the vapor pressure above pure B...
In a fluorine molecule (F_2) the considerable repulsion that exisys between lone pairs of electrons makes...
In a fluorine molecule (F_2) the considerable repulsion that exisys between lone pairs of electrons makes the F-F bond relatively weak since lone paris on one F atom repels the lone pairs on the other F atom. The situation can be represented as follows: F_2(g) K_p (g) = 7.83 at 1500K (i) If the equilibrium partial pressure of F2 molecules at 1500K is 0.200 atm, what is the equilibrium partial pressure of F atoms in atm? (ii) Calculate the fraction...
1. The normal boiling point of benzene (i.e., at 1 atm) is 80.09 °C. The molar...
1. The normal boiling point of benzene (i.e., at 1 atm) is 80.09 °C. The molar enthalpy of vaporization is 30.72 kJ mol . Assuming that AvapHm and AvapSm stay constant at their values at 80.09°C, calculate the values of AvapGm at 75.0 °C, 80.09 °C and 85.0 °C. Given your calculated values, do you still expect benzene to spontaneously condense at 75.0 °C and to spontaneously evaporate at 85.0°C? -1 2. The vapor pressure of a liquid was measured...
XA WinAna): Molarity: M e (mole)/Volume of solution in L), molality me molemas oletne Raoult's law:...
XA WinAna): Molarity: M e (mole)/Volume of solution in L), molality me molemas oletne Raoult's law: PAXA PA' AT, kim; AT. - kom - CRT (Gas constant R0.08206 atm-/mol; Henry's law. of gas = k. Per In (p/p) -(AH/R) (1/T2-1/T.): 1 atm = 760 mm He: Avogadro's number: 6.022 x 10" Part 1. Multiple choice problems (45 points: 5 points for each question) 1. Which of the following gases and pressures will result in the greatest as solubility in 1...
i need help with this page. please be organized. thank you - () - C, D)...
i need help with this page. please be organized.
thank you
- () - C, D) Activity: Clausius-Clapeyron Equation The Clausius Clapeyron equation allows us to find the vapor pressure at one temperature if we know the vapor pressure at another temperature and the AH Use the Clausius-Claperyon equation (given below) to solve the following problem. 1. Methanol has a normal boiling point of 64.6°C and a heat of vaporization (AHp) of 35.2 kJ/mol. What is the vapor pressure of...
1. Part U16 is used by Mcvean Corporation to make one of its products. A total...
1. Part U16 is used by Mcvean Corporation to make one of its products. A total of 18,000 units of this part are produced and used every year. The company's Accounting Department reports the following costs of producing the part at this level of activity: Per Unit Direct materials $ 3.90 Direct labor $ 8.50 Variable manufacturing overhead $ 9.00 Supervisor's salary $ 4.40 Depreciation of special equipment $ 2.80 Allocated general overhead $ 8.00 An outside supplier has offered...
plz help asap Excel Spreadsheet: Part A: Use Excel to generate a spreadsheet with the following information. Co...
plz help asap
Excel Spreadsheet: Part A: Use Excel to generate a spreadsheet with the following information. Column A Enter the measured masses of sodium carbonate from data page #1 в Using stoichiometry, calculate the theoretical number of moles of CO2 that can be produced from each reactant entry. C Using the ideal gas law, measured volume, and temperature, calculate the theoretical pressure of CO2(g) that can be produced from the theoretical moles of CO2(8) D Actual measured pressures of...
2ee do heete renouth hecel. to obtein Don't Cs CAS remax let graclolertee C abOu Lecore...
2ee do heete renouth hecel. to obtein Don't Cs CAS remax let graclolertee C abOu Lecore kmp ris lous knap oin ane vol Barome tris Pressore (u Ha) t8 s Tenpor watC oe AR (me) volome jo.00 mL loo leS. 16 5S.Le 50.6 4.0 le.is 5.80 5.45 caleoltrons Twakr 1/Twak.( Pair (u tnHa Proateam e Peoatatu Calculations: (0.5 pt for each block) Twater (K) 1/Twater (K) Pair (mm Hg) Pwater (mm Hg) Pwater (atm) In Pwater 92 We were unable...
section a and b please full procedure, thank you
1) We'll start with a pair of problems dealing with the Clapeyron equation that are adapted from Atkins & de Paula: a. Prior to the discovery that Freon-12 (CF2Cl2) was harmful to the Earth's ozone layer, it was frequently used as the dispersing agent in spray cans for hair spray, etc. Its enthalpy of vaporization at its normal boiling point of -29.2 °C is 20.25 kJ/mol. Estimate the pressure that a...
I need help on PART D.
11. An ideal solution is created by mixing A and B in the molar ratio 1:4. The mixture has a normal boiling point at 75 °C a. Given that the vapor pressure about pure A at 85 °C is 0.81 atm, what is the vapor pressure (in atm) of A above the mixture? b. What is the vapor pressure of B above the mixture? c. What would be the vapor pressure above pure B...
In a fluorine molecule (F_2) the considerable repulsion that exisys between lone pairs of electrons makes the F-F bond relatively weak since lone paris on one F atom repels the lone pairs on the other F atom. The situation can be represented as follows: F_2(g) K_p (g) = 7.83 at 1500K (i) If the equilibrium partial pressure of F2 molecules at 1500K is 0.200 atm, what is the equilibrium partial pressure of F atoms in atm? (ii) Calculate the fraction...
1. The normal boiling point of benzene (i.e., at 1 atm) is 80.09 °C. The molar enthalpy of vaporization is 30.72 kJ mol . Assuming that AvapHm and AvapSm stay constant at their values at 80.09°C, calculate the values of AvapGm at 75.0 °C, 80.09 °C and 85.0 °C. Given your calculated values, do you still expect benzene to spontaneously condense at 75.0 °C and to spontaneously evaporate at 85.0°C? -1 2. The vapor pressure of a liquid was measured...
XA WinAna): Molarity: M e (mole)/Volume of solution in L), molality me molemas oletne Raoult's law: PAXA PA' AT, kim; AT. - kom - CRT (Gas constant R0.08206 atm-/mol; Henry's law. of gas = k. Per In (p/p) -(AH/R) (1/T2-1/T.): 1 atm = 760 mm He: Avogadro's number: 6.022 x 10" Part 1. Multiple choice problems (45 points: 5 points for each question) 1. Which of the following gases and pressures will result in the greatest as solubility in 1...
i need help with this page. please be organized.
thank you
- () - C, D) Activity: Clausius-Clapeyron Equation The Clausius Clapeyron equation allows us to find the vapor pressure at one temperature if we know the vapor pressure at another temperature and the AH Use the Clausius-Claperyon equation (given below) to solve the following problem. 1. Methanol has a normal boiling point of 64.6°C and a heat of vaporization (AHp) of 35.2 kJ/mol. What is the vapor pressure of...
plz help asap
Excel Spreadsheet: Part A: Use Excel to generate a spreadsheet with the following information. Column A Enter the measured masses of sodium carbonate from data page #1 в Using stoichiometry, calculate the theoretical number of moles of CO2 that can be produced from each reactant entry. C Using the ideal gas law, measured volume, and temperature, calculate the theoretical pressure of CO2(g) that can be produced from the theoretical moles of CO2(8) D Actual measured pressures of...
2ee do heete renouth hecel. to obtein Don't Cs CAS remax let graclolertee C abOu Lecore kmp ris lous knap oin ane vol Barome tris Pressore (u Ha) t8 s Tenpor watC oe AR (me) volome jo.00 mL loo leS. 16 5S.Le 50.6 4.0 le.is 5.80 5.45 caleoltrons Twakr 1/Twak.( Pair (u tnHa Proateam e Peoatatu Calculations: (0.5 pt for each block) Twater (K) 1/Twater (K) Pair (mm Hg) Pwater (mm Hg) Pwater (atm) In Pwater 92 We were unable...
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