6.50 Problem Statement

Estimate the molar volume, enthalpy, and entropy for 1,3-butadiene as a saturated vapor and as a saturated liquid at 380 K. The enthalpy and entropy are set equal to zero for the ideal-gas state at 101.33 kPa and 0C. The vapor pressure of 1,3-butadiene at 380 K is 1919.4 kPa.

6.48 Problem Statement

Propane at 70C and 101.33 kPa is compressed isothermally to 1500 kPa. Estimate H and S for the process by suitable generalized correlations.

6.69 Problem Statement

A tank of 4 m³ capacity contains 1500 kg of liquid water at 250C in equilibrium with its vapor, which fills the rest of the tank. A quantity of 1000 kg of water at 50C is pumped into the tank. How much heat must be added during this process if the temperature in the tank is not to change?

6.5 Problem Statement

A pure fluid is described by the canonical equation of state: G = ( T ) + RT ln P , where (T ) is a substance-specific function of temperature. Determine for such a fluid expressions for V, S, H, U, C_P, and C_V. These results are consistent with those for an important model of gas-phase behavior. What is the model?