4.16 Calculate the latent heat of vaporization of methanol at 300,K (a) By Eqs. (4.12) and (4.13). T, = 337.8 K. (b) From the following handbook data for saturated methanol: T/K P/bar V'/m³ kg-¹ Vº/m³ kg-¹ 280 0.0621 1.244 x 10-3 11.62 290 0.1094 1.259 × 10-3 6.778 300 0.1860 1.274 x 10-3 4.095 310 0.3043 1.290 x 10 3 2.566 320 0.4817 1.306 × 10-3 1.661 The reported value is 1,167.3 kJ kg ¹. 4.17 Estimate the standard heat of formation of liquid ethyl benzene a AH=TAV- dpsat dT ΔΗ, 1.092(In Pc - 1.013) RTn 0.930 - Trn (~) 4.12

A closed system consisting of 2 lb of a gas undergoes a process during which the relation between pressure and volume is pV" = constant. The process begins with p₁= 15 lbf/in.2. v₁ = 1.25 ft3/lb and ends with p₂ = 60 lbf/in.2, v₂ = 0.5 ft3/lb. Determine (a) the volume, in ft², occupied by the gas at states 1 and 2 and (b) the value of n. Determine the volume, in ft, occupied by the gas at states 1 and 2. V₁= V₂ = Determine the value of n. n= 1 2 ft³ ft3

Liquid nitrogen is stored in 0.5-m3 metal tanks that are thoroughly insulated. Consider the process of filling an evacuated tank, initially at 295 K. It is attached to a line containing liquid nitrogen at its normal boiling point of 77.3 K and at a pressure of several bars. At this condition, its enthalpy is -120.8 kJ kg-1. When a valve in the line is opened, the nitrogen flowing into the tank at first evaporates in the process of cooling the tank. If the tank has a mass of 30 kg and the metal has a specific heat capacity of0.43 kJ kg-1 K-1, what mass of nitrogen must flow into the tank just to cool it to a temperature such that liquid nitrogen begins to accumulate in the tank? Assume that the nitrogen and the tank are always at the same temperature. The properties of saturated nitrogen vapor at several temperatures are given as follows:

The gas A(g) (1 mole) undergoes a two-step process one after another as described below :i) The gas is expanded at 25°C and from 1 bar pressure against a constant pressure of 0.2 bar and the final volume of the gas is the twice the initial volume.ii) The gas is cooled down to -25°C at constant volume.Cv,m = 3/2 RCalculate ΔU, ΔH, q and w for the each step and for the entire process

Please don't provide handwriting solution

11.5 What is the heat effect when 20 kg of LiCI(s) is added to 125 kg of an aqueous solution containing 10- wt-% LiCl in an isothermal process at 25oC ?

5. What is the slope of the solid-liquid coexistence curve given 4Sfusion=50 J K-¹ mol-¹ and AVuzion=8.0 x 105 m³ mol-¹ (a) 6.3 x 106 Pa K-¹ (b) 3.1 x 106 Pa K-¹ (c) 6.3 x 10° Pa K-¹ (d) 1.2 x 10³ Pa K-¹

1 (av (2) Calculate thermal expansion coefficient a = and isothermal compressibility K = ат 1 -÷) for the following gases: v (ap, T (a) Ideal gas (1 mol), pV = RT (b) Van der Waals gas (1 mol), (p +2) (V – b) = RT (c) Non-ideal gas (1 mol), pV = RT (1-B(T)) (B is called second virial coefficient)

Water freezing Data: Standard molar enthalpy of melting of ice at 273 K: AmeltH°(H2O, 273 K) = 6.02 kJ mol- %3D Average values of the specific heat capacities at constant pressure P° = 1 bar: Cp (H2O; s) = 37.6 J K-' mol-! Cp (H2O; 1) = 75.2 J K-' mol·l Calculate AfreezS°(H2O; 273 K), the standard molar entropy of freezing of water at 273 K.

For the equilibrium system: H2O(g) + CO(g) <--> H2(g) + CO2(g). Delta heat of rxn: -42 kJ/mol and Kc=0.62 at 1260 K.0.10 mol each of water, CO, and CO2 (all at 1260 K) are placed in a sealed 1.0-Liter thermally-insulated vessel, which is also at 1260 K. When the system comes to equilibrium, which is true?-The temp & mass of CO would increase.-The temp & mass of CO would decrease.-The temp would remain constant & the mass of CO would increase.-The temp would increase and the mass of CO would decrease.-The temp would decrease and the mass of CO would increase.