units

$w=-P\Delta V$
and
$w=-\int_{V_{1}}^{V_{2}}PdV=-nRTln\frac{V_{2}}{V_{1}}$

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Mallika Singh 1G
Posts: 99
Joined: Sat Aug 24, 2019 12:16 am

units

What are the units of w?

Bilal Pandit 1J
Posts: 98
Joined: Wed Sep 11, 2019 12:16 am

Re: units

w is given in joules.

005162902
Posts: 102
Joined: Wed Sep 18, 2019 12:15 am

Re: units

"w" represents work: the energy that exits or enters a system. Because it is referring to energy, work is measured in Joules (J).

KaleenaJezycki_1I
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Been upvoted: 2 times

Re: units

w as work is presented in Joules or can be kJ if the problem specifies it. W as degeneracy though does not have units because it is just the number of microstates possible.

Hannah Romeo 1J
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Re: units

Work (w) is in joules. The "w" used for calculating entropy is number of states.

RichBollini4G
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Re: units

Bilal Pandit 1J wrote:w is given in joules.

thank you

Gurmukhi Bevli 4G
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Joined: Wed Nov 14, 2018 12:20 am

Re: units

w represents work and is expressed in joules.

Ryan 1K
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Joined: Fri Aug 09, 2019 12:15 am

Re: units

w is usually given as joules (J) or kilojoules (kJ). However, depending on the problem, you may need to convert from pressure/volume units such as Pa $m^{3}$ and L atm.

Luc Zelissen 1K
Posts: 57
Joined: Mon Jun 17, 2019 7:23 am

Re: units

Also remember that degeneracy, Capital W, has no units. So for the equation $\Delta S=k_{b}*ln(W)$, the units of boltzmann constant is the same as entropy

aishwarya_atmakuri
Posts: 101
Joined: Sat Jul 20, 2019 12:15 am

Re: units

w is given in joules. Some problems may represent it as kJ so it is important to pay attention.

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