Calculate the work done by n moles of a van der Waals gas in an isothermal expansion (at constant temperature) from volume Vi to vf .
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Calculate the work done by n moles of a van der Waals gas in an isothermal expansion
(at constant temperature) from volume Vi to vf .
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- A quantity of gas in a piston cylinder had a volume of 0.539 m^3 and a pressure of 200 Pa. the piston compresses the gas to 0.222 m^3 in an isothermal (constant-temperature) process. What is the final pressure of the gas?Calculate ΔG° (answer in kJ/mol) for each of the following reactions from the equilibrium constant at the temperature given. (d)CoO(s)+CO(g)⇌Co(s)+CO2(g) T=550°C Kp=4.90×102 (e)CH3NH2(aq)+H2O(l)⟶CH3NH3+(aq)+OH−(aq) T=25°C Kp=4.4×10−4 (f)PbI2(s)⟶Pb2+(aq)+2I−(aq) T=25°C Kp=8.7×10Calculate the rate of reaction 2 at the top (0C, P = 0.001 atm) and bottom (–60°C, P = 0.1 atm) of the stratosphere assuming that xCH4 = 0.5 ppm and xOH = 1.2 pptr (10-12). Note that k2varies with temperature as shown.
- (A) how much energy is necessary to heat 7.0 kg of water from room temperature (20 degrees Celsius) to its boiling point? (Assume no energy loss) (b) if electrical energy were used, how much would this cost at 45 cent per kWh?Enter estimated values of Km and V max for the reactionThe amount of heat in kJ required to convert 0.7 gal of liquid water to steam equal… ?
- If you measured the rate of reaction at 20°C to be 1.11 x 10-5 M/s when using 0.080 M I1- and 0.040 M S2O82-. Approximately how long will the reaction take if you were to increase the temperature to 30 °C?For ferrocene (C10H10Fe) the enthalpy of sublimation is 73.2 kJ/mol and the entropy of sublimation is 243 J/mol.K. What is the sublimation temperature of ferrocene in degrees Celsius?Tell whether the entropy of the following reactions will be negative, positive or zero. b) NaNO3 + H2O -> Na^+ + NO3^- c) 4H + O2 <-> 2 H2O d) 4HO2 <-> 2H2O + O2 a) Solid Carbon Dioxide <-> Gas Carbon Dioxide
- Calculate the enthalpy of combustion for ethanol using bond energies and compare it with the other values.Two air flows are combined to a single flow. One flow is 1 m3/s at 20oC and the other is 2 m3/s at 200oC, both at 100 kPa. They mix without any heat transfer to produce an exit flow at 100 kPa. Neglect kinetic energies and find the exit temperature and volume flow rate.Consider the following reaction at 25°C with the ΔG°’ = +1800 J/mol for the forward reaction.The molar concentrations at the beginning of the reaction were [A] = 19 mM and [B] = 10 mM.After 1 hour, the concentrations were [A] = 16 mM and [B] = 13 mM. Calculate the ΔG of the reaction at the 1 hour timepoint. Please round to 1 decimal point.Gas constant = 8.315 J/mol K