What is the error resulting when you estimate heat capacity of methane as an arithmetic mean of the initial (298 K) and final temperature (523 K) instead of using the equation in below?                                                  Cp = A + BT +DT2

Please use Vc= 60.20L instead of Vc= 55.95L

answer b

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1. A gas has the following initial properties, m = 25 lb, P1 =485.3 psig, and T1 = 545 R. A certain amount is vacuumed out of the tank causing the following changes in the properties, T2 = 70 deg F and P2=285.3 psig. If heat was added to the remaining amount of gas in the tank causing an increase of temp of 85 deg F, prove that the following answers are achieved:a. mass = 15.43 lbm;b. weight = 15.43 lbf; c. gage pressure is 316.36 psi if the tank is 17,280 in3.Note: Gas is unknown. Do not assume that the gas is air.

PROBLEM SOLVING. Show ALL pertinent solutions. Tabulate data of iteration after the solution. 3. The ideal gas law is given by PV = nRT. This equation is only accurate for a limited range of pressure and temperature. Vander Waals came up with an equation that was accurate for large ranges of pressure and temperature given by (P + ) (v – b) = RT. Where a and b are empirical constants dependent on a particular gas. Given the values of R=0.08, a = 3.592, b = 0.04267, p = 10 and T=320 ( assume all units to be consistent), one is going to find the specific volume, v, for the given values. Using a 4 step iteration, what would be the value of its volume?

I need the answer as soon as possible

(a)Using the compressibility chart, determine the compression factor (Z). Express your final answers in 3 significant figures (b)What would be the corresponding state of carbon dioxide? (Pc = 72.9 atm, Tc = 304.2 K) T (K) 200 P (atm) Tс (К) Pc (atm) Gas Argon 23.0 150.7 48.0 1.1 1.0 T- 2.00 0.9 I=1.50 0.8 Tx =1.30 0.7 to 0.6 T=1.20 0.5 T-1.10 0.4 Legend: X Methane O Ethylene A Ethane O Propane O n-Butane Iso-pentane • n-Heptane A Nitrogen T =1.00 0.3 Carbon dioxide Water 0.2 Average curve based on data on hydrocarbons 0.1 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 Reduced pressure P x of x

Q1/Complete the following table for H2O: T (°C) Р (кра) v (m³ /kg) Phase description 60 4.131 300 Saturated liquid 250 200 150 1000 T (°C) Р (кра) u (kJ/kg) Phase description 20 5000 150 631.68 225 2000 30 Saturated liquid 300 2600 T (°C) Р (кра) h (kJ/kg) Phase description 500 200 175 486.99 55 600 400 4000 255 Saturated vapor T (°C) P (kpa) v (m³ /kg) X, if applicable Phase description 100 1000 130 0.00107 550 0.75 750 0.2556 150 75