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Estimate the normal boiling point of nitric acid, HNO: = at atm pressure, using the following data: AHo =-174.1kJ mol HNO: 156 J /mol KHNOs (1)Ho HNO:=-135.1kJ molS...

Question

Estimate the normal boiling point of nitric acid, HNO: = at atm pressure, using the following data: AHo =-174.1kJ mol HNO: 156 J /mol KHNOs (1)Ho HNO:=-135.1kJ molS HNO:266.2 J/mol KThe normal boiling point

Estimate the normal boiling point of nitric acid, HNO: = at atm pressure, using the following data: AHo =-174.1kJ mol HNO: 156 J /mol K HNOs (1) Ho HNO: =-135.1kJ mol S HNO: 266.2 J/mol K The normal boiling point



Answers

From the following data for liquid nitric acid, determine its heat of vaporization and normal boiling point. $$\begin{array}{cc} \text { Temperature }\left(^{\circ} \mathrm{C}\right) & \text { Vapor Pressure }(\mathrm{mm} \mathrm{Hg}) \\ \hline 0 & 14.4 \\ 10 . & 26.6 \\20 . & 47.9 \\30 . & 81.3 \\40 . & 133 \\50 . & 208 \\80 . & 670 .\end{array}$$

This crush in requires that use Ah, excel or some other kind of plotting program. In this, you will plot won over temperature, which is in Kelvin as your ex versus ah, the natural log of pressure, which is in atmospheres as your wife. From that you get the equation that says that you have the natural log of pressure is equal to negative heater vaporization over our plus, uh, times one over tea, plus some extra factor that we don't actually care about right now. So we've got why m an ex. So here, if we plot these two lines and then fit a curve, we're going to get something that looks like this with a negative slope. That slope, when you should plot this up turns out to be negative. 4636.5. So that's equal to negative Delta age vaporization over our now are is just our gas constant. So you actually do the math? Do you get the heater? Vaporization is equal to 38.55 killer Jules per mole. And that's all there is to it. When you're given a plot like this

We have solution 40 program When the pressure is one standard, it must very pressure. Boiling point is equals drool 100 degrees Celsius and pretty sure one is equal to one standard atmospheric pressure dear for temperature one is it will do 100 degree seances is equal to three c 123 killed me and pressure to is it will do one but one, but is equal to 0.9869 Standard in most very pressure and and Copia vaporization is equal to 40.657 You know, George, but a more. And according to Celsius Philip Ronnie Imagine Megyn Nature look be to divided by B one is equal to heat of vaporization divergent by general gets constant into one upon temperature one minus one. Upon completion to is equal to one upon temperature to is equal do 0.0 do 68 and then temperatures. True is equal to tree. 72.6. Tree killing hands boiling point Would we? 372 point 63 filming, uh, 99 point 63 degree Selves years Inter professional one. But

To calculate the boiling point of Bro Ming knowing the Delta H uh, vaporization and adult s a vaporization. We simply need to use to give free energy equation and recognize that the Gibbs Free Energy during a phase transition is equal to zero. So if Delta G is equal to zero, then we can use the equation. Delta G equals Delta H minus t Delta s set. Delta G equals zero. Put in our delta H uh, vaporization are Delta s a vaporization. Make sure the unit's air the same. If I have killer jewels here, I need to convert this one to kill a jewels. And I get a T value of 332 kelvin.

Solution for the problem. Okay? For the reaction here, the mercury mhm in liquid state. Okay, can very true market INGE assisted. Mhm. Yeah. Benefit G is equal to zero. This is in equilibrium. Okay, okay, on. Yeah, In Delta G is a full tau delta edge minus temperature. Delta ISS here, temperature is able to then add change in the intel p divided by changing an entropy. This is equated one. Okay, No, mhm. Their age is equal toe Delta age, if not into mercury in Gezi estate minus delta H f not into mercury in liquid state is equal toe you 60 seven. It do. You don't mind need zero, Joel, but everyone is equal to 60780 Joel Paramonova, right. A, uh, Delta is is it well, too? It's not into mercury NGC estate minus entropy into mercury in liquid state is equal to 174 point seven, minus 77.4. Goal promote is equal to 97 point three. John Byrne came on mhm. No temperature is equal to 60780 Divided by 97.3 is equal to 6 to 5. Calvin is equal to 352 degrees Celsius. Uh huh.


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