Surface tension gases. The pressure inside an ideal (one surface) soap bubble can be derived from thermodynamic free energy considerations. At constant temperature and particle number, , the differential Helmholtz energy is given by where is the difference in pressure inside and outside of the bubble, and is the surface tension. In equilibrium, , and so, For a spherical bubble, the volume and surface area are given simply by and Substituting these relations into the previous expression, we find which is equivalent to the Young–Laplace equation when . For real soap bubbles, the pressure is doubled due to the presence of two
Volume (video game) over the country of England and runs the nation as a corporatocracy. It is hinted in-game that "Volume" is set in the same timeline as that of "Thomas Was Alone", also developed by Mike Bithell, but set after the events of that game. "Volume"s gameplay has been designed by Bithell similar to the stealth elements of the "Metal Gear Solid" series. The game is presented in a top-down third-person view of the Volume simulation, showing a floor layout, Robert's avatar, and several guards and other antagonists that patrol the area. Several different variety of guards exist, each which have different