At what temperature does ethanol boil on a day in the mountains when the barometric pressure is 547 mmHg? The heat of va...
At what temperature does ethanol boil on a day in the mountains when the barometric pressure is 547 mmHg? The heat of vaporization of ethanol is 39.3 kJ/mol and its normal boiling point is 78.3°C. (R = 8.314 J/K • mol)
4) Draw the phase diagram for a substance that liquifies with increasing pressure.
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At what temperature does ethanol boil on a day in the mountains when the barometric pressure is 547 mmHg? The heat of va...
Find the temperature at which ethanol boils on a day in the mountains when the barometric...
Find the temperature at which ethanol boils on a day in the mountains when the barometric pressure is 547 mmHg. (Given: The heat of vaporization of ethanol is 39.3 kJ/mol; the normal boiling point of ethanol is 78.3°C.)
Can you show the work for these problems? Ethanol has an enthalpy of vaporization of 42.3...
Can you show the work for these problems?
Ethanol has an enthalpy of vaporization of 42.3 kJ/mol. The compound has a vapor pressure of 1.00 atm at 78.3 degree C. At what temperature is the vapor pressure equal to 0.800 atm? (R = 8.314 J/K middot mol) -83.8 degree C -24.4 degree C 62.6 degree C 73.0 degree C 78.0 degree C A liquid has an enthalpy of vaporization of 30.4 kJ/mol. At 269 K is has a vapor pressure...
The vapor pressure of ethanol is 1.00 x 102 mmHg at 34.90oC. What is its vapor...
The vapor pressure of ethanol is 1.00 x 102 mmHg at 34.90oC. What is its vapor pressure at 51.73 oC? (ΔHvap for ethanol is 39.3 Kj/mol.) Given the vapor pressure at one temperature, P1, we can calculate the vapor pressure at a second temperature, P2. In (P1/P2) = ΔHvap/R (1/T2 - 1/T1) Where, ΔHvap for ethanol must have the units of J/mol. R = 8.314 J/K.mol .. The temperatures must be in Kelvins. Solve for P2, What is the vapor...
At what temperature does benzene boil when the external pressure is 480 torr?
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 C. At what temperature does benzene boil when the external pressure is 480torr?Could you go through the steps as to how you got the answer as well, please? I have used the Clausius-Clapeyron Equation, yet still cannot get the correct answer.It is very frustrating. Thank you so much!I got 96 C each time I tried.. but that is not correct
ethanol has a heat vaporization of 38.56 8.314 J/mol K 782.4+ 27. All work must be...
ethanol has a heat vaporization of 38.56
8.314 J/mol K 782.4+ 27. All work must be show to receive credit. Remember, significant figures are important! P-AH/ TT, "P, R T ,T, - 25.0+ 2 1. (4 points) Ethanol has a heat or vaporization of 38 56 kJ/mol and a normal boiling point of 78.4°C. a. What is the vapor pressure of ethanol at 25 0 C? MP2 = - À HVED (T.. T2 ) - 38.56 kJlnit 78.4°C -25.06 0.0821...
The vapor pressure of ethanol is
1)2)1)The vapor pressure of ethanol is \(1.00 \times 10^{2} \mathrm{mmHg}\) at \(34.90^{\circ} \mathrm{C}\). What is its vapor pressure at \(63.16^{\circ} \mathrm{C}\) ? ( \(\mathrm{AH}_{\text {vap }}\) for ethanol is \(39.3 \mathrm{~kJ} /\) mol. )\(\mathrm{mmHg}\)2)Calculate the amount of energy (in kJ) necessary to convert \(457 \mathrm{~g}\) of liquid water from \(0^{\circ} \mathrm{C}\) to water vapor at \(187^{\circ} \mathrm{C}\). The molar heat of vaporization \(\boldsymbol{H}_{\mathrm{vap}}\) ) of water is \(40.79 \mathrm{~kJ} / \mathrm{mol}\). The specific heat for water is \(4.184 \mathrm{~J} /...
What quantity of heat is required to convert 50 g of ethanol (C2HsOH) at 23.0°C to...
What quantity of heat is required to convert 50 g of ethanol (C2HsOH) at 23.0°C to a vapor at 78.3°C (its boiling point)? (specific heat of ethanol = 2.46 J/g·C; ΔHvap-39.3 kJ/mol) A) 42.7 kJ B) 49.5 kJ C) 159 kJ D) 1970 k.J E) 6840 kJ
the normal boiling point of ethanol is 78.3 deg C and its molar enthalpy of vaporization is 38.56 Kj/mol. what is the ch...
the normal boiling point of ethanol is 78.3 deg C and its molar enthalpy of vaporization is 38.56 Kj/mol. what is the change in entropy in the system in J/k when 97.2 grams of ethanol at 1 atm condenses to a liquid at the normal boiling point?
please show step by step solutions. Thank you. 13. The vapor pressure of benzene (C6H6) is...
please show step by step solutions. Thank you.
13. The vapor pressure of benzene (C6H6) is 40.1 mmHg at 7.60 °C. What is its vapor pressure at 60.6 °C? The molar heat of vaporization of benzene is 31.0 kJ/mol. Show your work and circle your answer. R-8.314 J/Kmol Does the vapor pressure you calculated make sense, compared to the vapor pressure at 7.60°C? 14. The vapor pressure of trichlorosilane (SiHCla) at -2.°C is 0.258 atm. What is the normal boiling...
Scientists wished to determine the heat of formation of gaseous ethanol (C2H5 OH). Known was the...
Scientists wished to determine the heat of formation of gaseous ethanol (C2H5 OH). Known was the heat of formation of liquid ethanol (-277 kJ/mol) as well as the standard entropy of formation of liquid ethanol (159.9 J/molK) Please help out the scientists (that is negative 5170) when InPvap was plotted against Measurements of Pvap (T) produced a slope of -5170K 1/T (with T in Kelvin) Compute the AH of vaporization and then use your appendix to compute the heat of...
Can you show the work for these problems?
Ethanol has an enthalpy of vaporization of 42.3 kJ/mol. The compound has a vapor pressure of 1.00 atm at 78.3 degree C. At what temperature is the vapor pressure equal to 0.800 atm? (R = 8.314 J/K middot mol) -83.8 degree C -24.4 degree C 62.6 degree C 73.0 degree C 78.0 degree C A liquid has an enthalpy of vaporization of 30.4 kJ/mol. At 269 K is has a vapor pressure...
ethanol has a heat vaporization of 38.56
8.314 J/mol K 782.4+ 27. All work must be show to receive credit. Remember, significant figures are important! P-AH/ TT, "P, R T ,T, - 25.0+ 2 1. (4 points) Ethanol has a heat or vaporization of 38 56 kJ/mol and a normal boiling point of 78.4°C. a. What is the vapor pressure of ethanol at 25 0 C? MP2 = - À HVED (T.. T2 ) - 38.56 kJlnit 78.4°C -25.06 0.0821...
1)2)1)The vapor pressure of ethanol is \(1.00 \times 10^{2} \mathrm{mmHg}\) at \(34.90^{\circ} \mathrm{C}\). What is its vapor pressure at \(63.16^{\circ} \mathrm{C}\) ? ( \(\mathrm{AH}_{\text {vap }}\) for ethanol is \(39.3 \mathrm{~kJ} /\) mol. )\(\mathrm{mmHg}\)2)Calculate the amount of energy (in kJ) necessary to convert \(457 \mathrm{~g}\) of liquid water from \(0^{\circ} \mathrm{C}\) to water vapor at \(187^{\circ} \mathrm{C}\). The molar heat of vaporization \(\boldsymbol{H}_{\mathrm{vap}}\) ) of water is \(40.79 \mathrm{~kJ} / \mathrm{mol}\). The specific heat for water is \(4.184 \mathrm{~J} /...
What quantity of heat is required to convert 50 g of ethanol (C2HsOH) at 23.0°C to a vapor at 78.3°C (its boiling point)? (specific heat of ethanol = 2.46 J/g·C; ΔHvap-39.3 kJ/mol) A) 42.7 kJ B) 49.5 kJ C) 159 kJ D) 1970 k.J E) 6840 kJ
please show step by step solutions. Thank you.
13. The vapor pressure of benzene (C6H6) is 40.1 mmHg at 7.60 °C. What is its vapor pressure at 60.6 °C? The molar heat of vaporization of benzene is 31.0 kJ/mol. Show your work and circle your answer. R-8.314 J/Kmol Does the vapor pressure you calculated make sense, compared to the vapor pressure at 7.60°C? 14. The vapor pressure of trichlorosilane (SiHCla) at -2.°C is 0.258 atm. What is the normal boiling...
Scientists wished to determine the heat of formation of gaseous ethanol (C2H5 OH). Known was the heat of formation of liquid ethanol (-277 kJ/mol) as well as the standard entropy of formation of liquid ethanol (159.9 J/molK) Please help out the scientists (that is negative 5170) when InPvap was plotted against Measurements of Pvap (T) produced a slope of -5170K 1/T (with T in Kelvin) Compute the AH of vaporization and then use your appendix to compute the heat of...
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