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<h1 style="font-family: 'Times New Roman'; "><span style="font-weight: normal;">Your conversion is correct (Although you should use 1 cal=4.184 J (not 4.19)), </span></h1>
<h1 style="font-family: 'Times New Roman'; "><span style="font-weight: normal;">and yes, this is an absurdly strong force constant. I'm not sure what you mean by</span></h1>
<div><span style="font-weight: normal;">a physically realisitic value though.</span></div>
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<div><span style="font-family: 'Times New Roman'; font-size: medium; ">-- original message --</span></div>
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<pre>If I have a force constant 287 kcal/(mol * A^2), the A stands for Angstrom and I want to calculate this to kJ/(mol * nm^2), is it correct that I have to multiply 4.19/0.01 = 419 to the force constant?
Is ithis true: 287 kcal/(mol * A^2) = 120253 kJ/(mol * nm^2)
Could this be a physical realistic value or is this a hint, that 287 kcal/(mol * A^2) makes no sense for a force constant?
Thanks for helping
Greetings
Lara</pre>
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