Question

The statement below about the Clausius - Clapeyron equation that is not correct is A. A plot of log P versus 1/T gives a straight line of slope = - ?Hvap/(2.303 R). B. A plot of P versus T results in an exponential curve. C. The equation shows that the vapor pressure of a liquid decreases with increasing temperature. D. Vaporization of substances are endothermic changes; thus, ?Hvap have positive values. E. For a given compound, the higher the temperature, the higher the vapor pressure. The reason that the vapor pressure of a solvent is lowered (VPL) when a solute is dissolved in the solvent is primarily due to: A. a change in polarity of the solvent as the solution is formed. B. the crowding effect caused by particles of the solute at the surface of the solution. C. the mole fraction, X, of the solvent being increased. D. the fact that all solutes dissolve in liquids exothermically. E. the fact that the entropy of the solvent is increased.

          The statement below about the Clausius - Clapeyron equation that is not correct is

A. A plot of log P versus 1/T gives a straight line of slope = - ?Hvap/(2.303 R).
B. A plot of P versus T results in an exponential curve.
C. The equation shows that the vapor pressure of a liquid decreases with increasing temperature.
D. Vaporization of substances are endothermic changes; thus, ?Hvap have positive values.
E. For a given compound, the higher the temperature, the higher the vapor pressure.

The reason that the vapor pressure of a solvent is lowered (VPL) when a solute is dissolved in the solvent is primarily due to:

A. a change in polarity of the solvent as the solution is formed.
B. the crowding effect caused by particles of the solute at the surface of the solution.
C. the mole fraction, X, of the solvent being increased.
D. the fact that all solutes dissolve in liquids exothermically.
E. the fact that the entropy of the solvent is increased.

$The statement below about the Clausius - Clapeyron equation that is not correct is A. A plot of log P versus 1/T gives a straight line of slope = - ?Hvap/(2.303 R). B. A plot of P versus T results in an exponential curve. C. The equation shows that the vapor pressure of a liquid decreases with increasing temperature. D. Vaporization of substances are endothermic changes; thus, ?Hvap have positive values. E. For a given compound, the higher the temperature, the higher the vapor pressure. The reason that the vapor pressure of a solvent is lowered (VPL) when a solute is dissolved in the solvent is primarily due to: A. a change in polarity of the solvent as the solution is formed. B. the crowding effect caused by particles of the solute at the surface of the solution. C. the mole fraction, X, of the solvent being increased. D. the fact that all solutes dissolve in liquids exothermically. E. the fact that the entropy of the solvent is increased.$

Added by Carmen M.

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