[15] Atmospheric pressure (P) decreases with increasing altitude (h) based on the following exponential function (with e as the base): P = Pº expl Mgh RT where Pº=1 atm at h=0 (sea level) and Tis the average temperature of the atmosphere, M the molar mass of air (29 g mol-¹), and g the standard gravity. Please estimate the boiling point of water at atmospheric temperature T=293.2 K, and height h=3000 m. The heat of vaporization of water at 293.2 K is 44.22 kJ mol-

[15] Atmospheric pressure (P) decreases with increasing altitude (h) based on the following exponential function (with e as the base): P = Pº expl Mgh RT where Pº=1 atm at h=0 (sea level) and Tis the average temperature of the atmosphere, M the molar mass of air (29 g mol-¹), and g the standard gravity. Please estimate the boiling point of water at atmospheric temperature T=293.2 K, and height h=3000 m. The heat of vaporization of water at 293.2 K is 44.22 kJ mol-

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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3. Calculate the AH for the reaction C, (graphite) + 2H210) CH, from the following enthalpy changes: Caraphite) + Ozia) Co, AH = -393.5 kJ AH = -571.6 kJ 2H,0 COa + 2H,0 2H, + 0, 2(g) 2(g) CH, + 20, 2(g) AH = -890.4 kJ 4(g) 2(g)
Km.201.
For a certain reaction, AGxn = +3.5 kJ/mol at 298 K. %3! a. If this reaction is at equilibrium, which would you expect to have higher concentra- tions: reactants or products?
Can you help me out with this one please. Thank you.
MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H (kJ/mol) S° (J/(mol · K)) CH, OH (1) -238.6 126.8 O₂(g) 0 205.2 CO₂(g) -393.5 213.8 CO2(aq) -413.8 117.6 H₂O(g) -241.8 188.8 H₂O(1) -187.8 70.0 ▼ Part D where no represents the stoichiometric coefficients of the products, n, represents the st of the reactants, and Sº represents the standard entropies. AGxn= Calculate AG at 25°C. Express your answer in kilojoules to three significant figures. Submit = Provide Feedback 15] ΑΣΦ Request Answer Part E Complete previous part(s) [2(S° co₂(g)) + 4(S° H₂O(g))]- [2(S° CH₂OH()) + 3(S° 0₂(E [2(213.8 J/K)+4(188.8 J/K)] - [2(126.8 J/K) + 3(2 314 J/K MacBook Pro P Pearson ? kJ Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contac
1.1 mole of O₂ (g) and 2.2 moles of N₂ (g) are spontaneously mixed in a cylinder (volume = 30.0 L) with a movable piston. Assume both gases are ideal. (a) Explain why the mixing of O₂ and N₂ gases is spontaneous in term of chemical potential. (b) Calculate the final pressure (in N m2) of mixture when (i) the mixing occurs isothermally at 298 K; (ii) the initial temperatures of O₂ (g) and N₂ (g) are 306 K and 367 K, respectively, and after mixing, the temperature is equilibrated. State any assumption(s) in your calculations. (c) ) Now, the mixture in (b)(ii) is expanded isothermally and the external pressure is suddenly decreased to a final pressure of 890 Torr, determine whether the process is reversible or not.
Given the table below and the gaseous and solid phases CO₂ at 1 atm and 298K, CO2(g) CO2 (s) -393.5 -427.4 213.8 AH°; (in 1/1) ΔΙ J So in mol - K What is the AH of the CO2 sublimation? ?
We want to convert 18 g of solid water at -22 °C to vapor at 116 °C. The energy need for this process is supplied by combustion of CH/C,H, gas mixture which is composed of 60% CH,(g) by mass. What is the volume of required amount of the mixture at 25 °C and under 745 mmHg pressure? For water c(solid) = 2.11 JgK", c(liquid) = 4.18 Jg" K", c(gas) = 2.00 J g K". AH"(fusion) = 6.00 kJ mol", AH (vapor.) = 40.7 kJ mol". %3D %3D %3D For CH, AH"(combustion) = -891 kJ mol %3D For C,He AH"(combustion) -1560 kJ mol O a. 1.38 L O b. 1.58 L Oc. 1.43 L O d. 1.47 L O e. 1.30 L
Q5.
Calculate deltaH (in KJ), Freezing 0.375 moles of liquid Br2. Br-(aq) = -121.6 KJ/mole Condensing 500.0g of mercury vapor. Hg^2+ (aq) = +171.1 KJ/mole
Use the following data to determine the AH° for the conversion of diamond into graphite: C(s,diamond) +O2(g) CO,(g) AH°= -395.4 kJ 200,(g) 2c0(g) +0,(g) AH°= 566.0 kJ 2c0(g) C(s,graphite) + CO,(g) AH°= -172.5 kJ C(s,diamond) AH° = → C(s,graphite) kJ
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