# Questions tagged [equation-of-state]

Questions related to a thermodynamic equation describing the state of matter under a given set of physical conditions.

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### Calculating phase diagram of mixed component natural gases (Bubble and Dew points)

I'm developing a piece of software which calculates and plots the Phase diagram (PT) for a mixed component natural gas. For reference I have a common used natural gas plotted using a commercial ...
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### Calculating the number of energy states in a particular momentum direction

Given is a 2D scenario of a particle within a container: The circumference shows all the possible 2D spatial directions for a given momentum value of the particle. One of those momentum directions is ...
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I am a total noob in chemistry, so sorry in advance if this is a very stupid question... I am trying to solve this redox reaction: $$\ce{KClO3 + FeSO4 + H2SO4 -> Fe2(SO4)3 + KCl}$$ $$\ce{K^{+1}Cl^{... 0answers 10k views ### dU/dV in van der Waals equation of state derivation Previous, I proved that$$\frac{T_2}{T_1}^{C_V/(C_p-C_V)}=\frac{V_1}{V_2}$$I've been asked to derive a similar expression for a gas that obeys the equation of state$$p=\frac{RT}{(\overline{V}-b)}$... 0answers 107 views ### Is a/b > 1 mol/L for a and b in the van der Waals equation? We know that the van der Waals equation for real gases is $$\left(p + \frac{an^2}{V^2}\right)(V-nb) = nRT.$$ Is$a > b$always in this equation? In my textbook$a > b$for gases like$\ce{He},...
I have to decide whether a $\pu{20 L}$ container with $\pu{0.8 kg}$ ethane can withstand the pressure at $\pu{373.15 K}$. The following information is given: \begin{align} b &= \pu{6.448x10^-2 ...