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Last updated 8:08 AM on 8/1/26
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8 Terms

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<p>Value of R</p>

Value of R

8.313 Nm^-2 m³ mol^-1 K^-1

​If you use \text{atm dm}^3, the numerical value must be 0.0821, not 8.314!

<p>8.313 Nm^-2 m³ mol^-1 K^-1</p><p class="has-focus">​If you use \text{atm dm}^3, the numerical value must be 0.0821, not 8.314!</p>
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Value of R in SI units

8.313 Nm mol^-1 K^1

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R in joules

We know that R in SI units is 8.313 Nm/mol.K and Nm= joules

Hence 8.313 J/ mol. K

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R can be written in terms of Cal

1.987 cal / K. Mol

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Kinetic energy and Temperature relationship

K. E = 3/2 RT

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When temperature of 1 mole of ideal gas increases from 27C to 627 C then kinetic energy increases by

3

<p>3 </p>
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Energy relationship

E= n RT

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