Question

The normal boiling point of liquid methyl acetate is 331 K. Assuming that its molar heat of vaporization is constant at 30.6 kJ/mol, the boiling point of CH3COOCH3 when the external pressure is 1.37 atm is K. 

          The normal boiling point of liquid methyl acetate is 331 K.
Assuming that its molar heat of vaporization is constant at 30.6
kJ/mol, the boiling point of CH3COOCH3 when the external pressure
is 1.37 atm is K.

Added by Alex M.

Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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The normal boiling point of liquid methyl acetate is 331 K. Assuming that its molar heat of vaporization is constant at 30.6 kJ/mol, the boiling point of CH3COOCH3 when the external pressure is 1.37 atm is K.
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Transcript

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00:01 So today, we're told that methyl acetate boils at 331 kelvin.
00:05 We're told that the heat of vaporization is 30 .6 kilojoules per mole, and we're asked to find the boiling point at 1 .37 atmospheres.
00:15 All right? and so, we can use the clossius -clapeiron equation to find this, which is 1 over t2 is equal to the negative natural log of p2 over p1 times r over over delta h plus one over t1 all right and so when we start to plug in we need to solve for t2 all right and this is equal to the negative natural log of p2 which is the external pressure so we plug in 1 .37 over our first pressure which is 1 times r which is 8 .314 over delta h, which is the heat of vaporization, all right, so that's going to be 30 .6 times 10 to the third.
01:09 So that's going to be in joules now, plus one over the normal boiling point, which is 331 kelvin...
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