Calculateur (298.15 K, 1 bar) for nitrogen in air, assuming that the mole fraction of N₂ in air is 0.783. Express your answer with the appropriate units. HÅ ? mixture Value Units Submit Request Answer
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- Choose the statements that are correct. (Select all that apply.) O For the isothermal compression of an ideal gas AH is always zero. For the melting of one mole of ice at 0°C, AH = 0. O In the isothermal expansion of an ideal gas q = -w. O Exothermicity is more important as a driving force at low temperatures than at high temperatures.A sample of an ideal gas undergoes the cycle. A-8-c-D¬A depicted below. All four steps of the cycle can be considered reversible processes. For this gas, Cy= 1.5R. Calculate q. w, AU, AH, AS, and for each step and for the entire cycle. Please clearly label and baox your answers or summarize them in the form of a table. HINT: Stort by calculating the number of moles. A T= 500 K 1.75 B. T= 500 K 0.875 D, T= 143 K C, T= 143 K 0.50 0.25 4.0 8.0 Volume (L) Pressure (atm)Choose the statements that are correct. (Select all that apply.) In the isothermal expansion of an ideal gas |wreyl is always greater than the |work| for a finite number of steps. The terms AH and q mean precisely the same thing: flow of energy via heat. = -W. In the isothermal expansion of an ideal gas q O Exothermicity is more important as a driving force at low temperatures than at high temperatures.
- Given the following reaction at 298 K: 2 H2S(g) + SO2(9) → Ss(s) + 2 H20(g) Part A ArG" = -102 kJ mol Determine the value of the reaction quotient Q when: Pu,s = 2.00 bar; Pso, = 0.185 bar; and Pa,0 = 1.245 ba Express your answer using three significant figures. fe kevboard shortcuts help Temgrates Symbols undo rego Q =What are the values of q, w, AU, AH, AS, ASsurr, and ASuniv for the following constant pressure process for a system containing 0.203 moles of CH3OH ? CH3OH(g, 112.0 °C, 1.00 atm) CH3OH(I, 27.0 °C, 1.00 atm) Assume that CH3OH(g) behaves as an ideal gas and the volume of CH3OH(I) is much less than that of CH3OH(g). Also, assume that the temperature of the surroundings is 27.0 °C. Data: Molar heat capacity for CH3OH(g), Cp.m = 44.1J K-1 mol¬1 Molar heat capacity for CH3OH(1), Cp.m = 81.1 J K-1 mol-1 Enthalpy of vaporization, Avap H= 35.2 kJ mol¯1 at 64.7 °C and 1.00 atm Enter answers that are accurate to three (3) or more significant figures.M Apple Google Disney ESPN Yahoo! Biomedical Careers Program Apple iCloud Yahoo Images Bing Google Wikipedia Facebook ☆ G G D2L ☆ C COWLv2 |... ☆ For the reaction B 4NH3(g) +502(g) → 4NO(g) + 6H₂O(g) Assume that ΔΗ° and AS are independent of temperature. Submit Answer prod03-cnow-owl.cengagenow.com Try Another Version D2L AH°-905.2 kJ and AS° = 180.5 J/K The standard free energy change for the reaction of 2.11 moles of NH3 (g) at 277 K, 1 atm would be This reaction is favored under standard conditions at 277 K. Twitter LinkedIn The Weather Channel Yelp TripAdvisor b b c C G 凶 G C [References] Use the References to access important values if needed for this question. 2 item attempts remaining + 88 kJ. M
- H5-1. 80 g of ideal Argon gas (Ar) are at a 1000 L cylinder and constant temperature of 300 K. The system is closed by a free moving, frictionless piston, and above it there is a weight with mass M applying pressure as shown in the figure. At a certain moment a second weight is added above with identical mass M and the system is compressed until new equilibrium is reached. M W, Pin Vin T = const M M W M M Pin Vin P₁ V₁ T = const T = const a. Calculate the work and the change in the internal energy of the Argon gas as a result of the compression process, given Q = - 4.99 kJ, Mw(Ar)= 40 g.mol-1. b. One weight is removed and the system returns to the original state, as described in the figure. Calculate the for the entire process the work and change in internal energy.EXERSICE 1 An ideal gas undergoes a process A -> B in two alternative ways: i) reversible and ii) irreversible. Which of the following options are always correct? Provide a brief and sufficient justification for your selections and exclusions. The symbol S refers to the ideal gas System unless the Universe is explicitly referred to as the Suniverse. ASrev. = 0 ASirrev>0 AS Suniverse |rev = 0 ASuniverse rev 0 ASaçx.A sample of an ideal gas undergoes the cycle, A-B C-D-A, depicted below. All four steps of the cycle can be considered reversible processes. For this gas, Cy= 1.5R. Calculate q, w, AU, AH, AS, and for each step and for the entire cycle. Please clearly label and box your answers or summarize them in the form of a table. HINT: Start by calculating the number of moles. A, T = 500 K 1.75 В. Т%3D 500 К 0.875 D, T = 143 K 0.50 С. Т%3D 143К 0.25 4.0 8.0 Volume (L) Pressure (atm)1. A perfect gas undergoes compression at constant temperature, which reduces its volumeby 3.08 dm3. The final pressure and volume of the gas are 6.42 bar and 5.38 dm3, respectively. Calculate the original pressure of the gas in (a) bar, (b) atm. 2. Consider an isothermal column of an ideal gas at 25oC. What must be the molar mass ofthis gas be if the pressure is 0.80 of its ground level value at (a) 10km and (b) 1km ? Please show complete solutions2) Calculate AS (for the system) when the state of 3.00 mol of perfect monoatomic gas atoms is changed from 25°C and 1.00 atm to 125°C and 5.00 atm. How do you rationalize the sign of AS? 3) Calculate AH and AStot when two copper blocks, each of mass 10.0 kg, one at 100°C and the other at 0°C, are placed in contact in an isolated container. The specific heat capacity of copper is 0.385 J K-g1 and may be assumed constant over the temperature range involved. ,-13-) 1 mole of N2 gas in 300 K and 2 L volume undergoes an isothermal reversible expansion up to 20 L final volume. In this case, calculate the work by assuming that the gas; a) behaves ideally b) behaves in accordance with the van der Waals equation. Calculate the percent error in work when the ideal gas equation is used instead of the van der Waals equation.SEE MORE QUESTIONS