Be sure that you can derive the algebraic formula for internal pressure, πt = t (∂p/∂t)v – p, from the fundamental equation, du = t ds – p dv. using the relationship for internal pressure, show that for a gas that obeys a truncated virial equation of state: z = pvm/rt = 1 + b(t)/vm, the internal pressure may be approximated as πt≈ rt2(vm)-2∙(∆b/∆t). estimate the internal pressure at 1.0 bar and also at 10.0 bar for a hypotheti