Useful constant: R-0.08315L.bar/K.mol, 0.08206L.atm/K.mol or 8.314J/K.mol, Cv(any monoatomic gas) 3R/2 and Cp-Cv+ R for an ideal...
One mole of an ideal gas with CP = (7/2)R and CV = (5/2)R expands from P1 = 8 bar and T1 = 630 K to P2 = 1 bar. Take the value of R as 8.314 J·mol-1·k-1. At constant volume (assume mechanical reversibility), find the value of W, Q, ΔU, and ΔH? rt.)
Show that for an ideal gas Cp=yR/(y-1), Cv=R/(Y-1) and Cp-Cv=R
2. One mole of an ideal gas, CP - (7/2)R and CV - (5/2)R, is compressed adiabatically in a piston/cylinder device from 2 bar and 25°C to 7 bar. The process is irreversible and requires 35% more work than a reversible, adiabatic compression from the same initial state to the same final pressure. What is the entropy change of the gas?
1.95 mol of an ideal gas with CV = 3R/2 undergoes the following transformations from an initial state T = 290 K, P = 1.000 bar. Find q, w, ∆U, ∆H and ∆S for each transformation. a) A reversible adiabatic compression until the final temperature reaches 390 K.
2.80 moles of an ideal gas with CV,m=3R/2 undergoes the transformations described in the following list from an initial state described by T = 310. K and P = 1.00 bar. The gas is heated to 615 K at a constant volume corresponding to the initial volume. Calculate q for this process
3.55 mol m o l of an ideal gas with CV,m=3R/2 C V , m = 3 R / 2 undergoes a process in which the initial state is described by Ti=357K T i = 357 K and Pi=6.00bar P i = 6.00 b a r and the final state is described by Tf=742K T f = 742 K and Pf=150.bar P f = 150. b a r . calculate delta S for a irreversible prcoess
Two moles of a monatomic ideal gas ( CV = 3R/2; CP = 5R/2) are used as the working substance for a heat engine whose cycle is depicted in the Ögure. The path bc is isothermal. In each part below explain the reasoning behind your calculations if necessary. (P0 =1.11 x 105 N/m2; V0 = 4.5 x 10-2 m3) (a) Determine Ta. (b) Determine Tb = Tc. (c) Determine Wab. (d) Determine Qab. (e) Determine Wbc. (f) Determine Qbc. (g)...
2.85 moles of an ideal gas with CV,m=3R/2 undergoes the transformations described in the following list from an initial state described by T = 310. K and P = 1.00 bar. Part A:The gas is heated to 600 K at a constant volume corresponding to the initial volume. Calculate q for this process. Express your answer with the appropriate units. Part B:The gas is heated to 600 K at a constant volume corresponding to the initial volume. Calculate w for...
Question 5 (2.0 pts) Assume that Cp for an ideal gas is given by co(T) = 0.9 + 2.5 x 10-* T, in kJ/kg-K, where is the temperature in Kelvin. (Use the gas constant R = 0.3 kJ/kg-K) (a) (+0.4) Derive an expression for Cy as a function of temperature. The gas undergoes an isochoric process from a temperature T, = 400 K to T2 = 500 K. Calculate the change in (b) (+0.6) enthalpy, in kJ/kg, (c) (+0.6) entropy,...
Question 2 One mole of an ideal gas, initially at 30 C and 1 bar is changed to 130 °C and 10 bar by using two different mechanically reversible processes: 2.1 The gas is first heated at constant pressure until its temperature is 130 °C and then compressed isothermally to 10 bar. 2.2 The gas is first compressed isothermally to 10 bar and then heated at constant pressure to 13°C Calculate Q, W, AU, and AH for each case. Take...