This table displays the vapor pressure of nitrogen at several different temperatures. Use the da

step 1 My name is Zahma Tali. In this question, in this question we have different value for vapor pres

This table displays the vapor pressure of nitrogen at...

Key Concepts

Normal Boiling Point

The normal boiling point is the temperature at which the vapor pressure of a liquid equals standard atmospheric pressure (typically 1 atm). This point is a critical reference in thermodynamics and helps in characterizing the volatility and phase behavior of substances.

Heat of Vaporization

The heat of vaporization is the amount of energy required to transform a unit mass of a liquid into vapor at constant temperature and pressure. It represents the energy needed to overcome the molecular forces in the liquid and is a fundamental concept in studying phase changes.

Clausius-Clapeyron Equation

The Clausius-Clapeyron equation relates the rate of change of vapor pressure with temperature to the heat of vaporization. It is essential for analyzing phase transitions like boiling and is used to extract thermodynamic properties from experimental vapor pressure data.

Vapor Pressure

Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (liquid or solid) at a given temperature. It indicates how readily a substance will evaporate and is a key factor in phase change phenomena.

Transcript

00:01 My name is zahma tali.

00:02 In this question, in this question we have different value for vapor pressure for substance and different temperature and we want to determine the delta h vaporization for this substance.

00:17 So answering this question, we will use the law len b2 divided by the b1 is equal negative delta h vaporization divided by the ideal gas constant times by 1 divided by t2 negative 1 divided by the t1.

00:41 So here we will suppose this is a b2 and this is the b1 and we will suppose this is a t2 and we will suppose this is a t1 so by substituent we will put the b1 is 292 289 .5 and here 130 .5 and the t2 is 70 and the t2 is 60 and the t1 is 65 and from the value of r we can determine which is the unit of delta h which we use the value 8 .314 times by timber negative 3 which each unit is kilojou divided by more times by 2 kelvin so by using the calculator to substitute this value we found that the value of delta h is equal 5 so the value of delta h of vaporization is equal 5 .9 jules 4h moore.

02:11 So this is the answer of first part.

02:15 So the second part for this question, he wants you to calculate the boiling point.

02:23 We all know that the boiling point, which we call it t2, usually it occur in the vapor pressure, which we call it vapor pressure to add a boiling point, which we call it, which we call it vapor pressure to add a boiling point, which is equal the atmospheric pressure which is 7602.

02:45 So now we want to calculate the t and b2, knowing that from the table we can take any value we want so we will take this.

02:56 So we will take the b1 is equal.

03:00 So this is the b1 is equal...

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