Question

Learning Target LS.5: I can calculate boiling point, vapor pressure, or enthalpy of vaporization for a compound using the Clausius-Clapeyron equation and other pertinent data. 1. Use the two-point form of the Clausius-Clapeyron equation to find the enthalpy of vaporization (?Hvap) and vapor pressure at 155 °C for benzaldehyde, C7H6O, given the data at right. Table 1. Temperature and pressure data for liquid benzaldehyde. Temp (°C) | Pressure (torr) 125 | 229 175 | 805 2. Use the Clausius-Clapeyron plot at right to determine the enthalpy of vaporization (?Hvap) and normal boiling point for this unknown liquid. Plot of ln(Pvap) versus 1/T for Unknown y = -1485x + 11.28 ln(Pvap) (torr) 1/T (K?¹) 7.6, 7.4, 7.2, 7, 6.8, 6.6, 6.4, 6.2, 6 0.0026, 0.00285, 0.0031, 0.00335, 0.0036

          Learning Target LS.5: I can calculate boiling point, vapor pressure, or enthalpy of vaporization for a compound using the Clausius-Clapeyron equation and other pertinent data.
1. Use the two-point form of the Clausius-Clapeyron equation to find the enthalpy of vaporization (?Hvap) and vapor pressure at 155 °C for benzaldehyde, C7H6O, given the data at right.
Table 1. Temperature and pressure data for liquid benzaldehyde.
Temp (°C) | Pressure (torr)
125 | 229
175 | 805
2. Use the Clausius-Clapeyron plot at right to determine the enthalpy of vaporization (?Hvap) and normal boiling point for this unknown liquid.
Plot of ln(Pvap) versus 1/T for Unknown
y = -1485x + 11.28
ln(Pvap) (torr)
1/T (K?¹)
7.6, 7.4, 7.2, 7, 6.8, 6.6, 6.4, 6.2, 6
0.0026, 0.00285, 0.0031, 0.00335, 0.0036

Learning Target LS.5: I can calculate boiling point, vapor pressure, or enthalpy of vaporization for a compound using the Clausius-Clapeyron equation and other pertinent data.
1. Use the two-point form of the Clausius-Clapeyron equation to find the enthalpy of vaporization (?Hvap) and vapor pressure at 155 °C for benzaldehyde, C7H6O, given the data at right.
Table 1. Temperature and pressure data for liquid benzaldehyde.
Temp (°C) | Pressure (torr)
125 | 229
175 | 805
2. Use the Clausius-Clapeyron plot at right to determine the enthalpy of vaporization (?Hvap) and normal boiling point for this unknown liquid.
Plot of ln(Pvap) versus 1/T for Unknown
y = -1485x + 11.28
ln(Pvap) (torr)
1/T (K?¹)
7.6, 7.4, 7.2, 7, 6.8, 6.6, 6.4, 6.2, 6
0.0026, 0.00285, 0.0031, 0.00335, 0.0036

Added by Melissa B.

Question

Please give Ace some feedback