Consider the natural environment of CO2. What is the difference between an open and closed system for Carbon dioxide. What is constant in an open system and what is constant in a closed system and the laws that govern these constant values. create a sketch of the carbonate system on an open and closed system.

A student dissolves 11.3 g of potassium hydroxide (KOH)in 300. g of water in a well-insulated open cup. He then observes the temperature of the water rise from 20.0 °C to 27.1 °C over the course of 8.7 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: KOH(s) K+ (aq) + OH(aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to 2 significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔΗ rxn per mole of KOH. exothermic…

Consider the equilibrium system described by the chemical reaction below. Calculate the value of Qc for the initial set reaction conditions in 2.50 L container: 11.1 g C, 2.45 g H:O, 15.3 g CO and 7.55 g H2. C(s) + H:O(g) = CO(g) + Ha(g) Based on the given data, set up the expression for Qc and then evaluate it. Do not combine or simplify terms. Qc =

While ethanol (CH3CH₂OH) is produced naturally by fermentation, e.g. in beer- and wine-making, industrially it is synthesized by reacting ethylene (CH₂CH₂) with water vapor at elevated temperatures. A chemical engineer studying this reaction fills a 5.0 L flask with 4.9 atm of ethylene gas and 1.9 atm of water vapor. When the mixture has come to equilibrium she determines that it contains 4.27 atm of ethylene gas and 1.27 atm of water vapor. The engineer then adds another 2.5 atm of ethylene, and allows the mixture to come to equilibrium again. Calculate the pressure of ethanol after equilibrium is reached the second time. Round your answer to 2 significant digits. 000 Ar [ atm x10 X S ? Explanation © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility Check 0 A 1

Km.201.

Methane and water react at 600. K according to the equation below. CH4(g) + H2O(g)→ COg) + 3 H2g) AH=205.9 kJ/mol a. Determine the equilibrium constant for the reaction at 600. K. b. A reaction vessel containing CH4, CO and H2O is heated to 600 K where the pressures are 16.8 atm CH4, 2.97 atm CO and 0.0103 atm H2O. Determine the equilibrium pressure of hydrogen.

While ethanol (CH₂CH₂OH) is produced naturally by fermentation, e.g. in beer- and wine-making, industrially it is synthesized by reacting ethylene (CH₂CH₂) with water vapor at elevated temperatures. A chemical engineer studying this reaction fills a 2.0 L flask with 4.7 atm of ethylene gas and 1.6 atm of water vapor. When the mixture has come to equilibrium she determines that it contains 3.5 atm of ethylene gas and 0.40 atm of water vapor. The engineer then adds another 2.4 atm of ethylene, and allows the mixture to come to equilibrium again. Calculate the pressure of ethanol after equilibrium is reached the second time. Round your answer to 2 significant digits. atm 33 0 x10 X S 114 ype URL 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility CH151 152_lab....docx ☆ ^ W + Chapter 13- Che....doc Show

Consider the dissolution of NaBr and NaI. The values provided here will be helpful for answering the following questions.             ΔH∘solnΔHsoln∘ (kJ/mol)              ΔS∘solnΔSsoln∘ $$Jmol•K​ NaBr            –0.860                                  57.0 NaI              –7.50                                     74.0   Write a balanced equilibrium equation for the dissolution of NaI in water. Include phases. Calculate the change in free energy if 0.575 moles of NaI is dissolved in water at 25.0°C.   What is the dissolution of 1.00 mol of NaBr at 298.15 K?

A student dissolves 11.8 g of sodium hydroxide (NaOH)in 250. g of water in a well-insulated open cup. She then observes the temperature of the water rise from 20.0 °C to 33.6 °C over the course of 8 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaOH(s) Na (aq) + OH (ag) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy AH per mole of NaOH. O…

A student dissolves 12.3 g of potassium chloride (KCI)in 250. g of water in a well-insulated open cup. He then observes the temperature of the water fall from 22.0 °C to 19.6 °C over the course of 5.9 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: olo Ar KCI(s) K* (aq) + CI (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. exothermic Is this reaction exothermic, endothermic, or neither? endothermic neither If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. |kJ kJ Calculate…