A certain 25-L gas was initially at 35 ⁰C and 6.3 atm. The gas is then compressed to 18.6 atm at constant temperature. Determine the change in entropy in J/K. Formula to convert Celsius to Kelvin is given by: K = ⁰C +273.15

Q: The normal boiling point of Br2(l) is 58.8 ∘C, and it'smolar enthalpy of vapor Calculate the value…

A: The molar enthalpy of vaporization is 29.6 kJ/mol Temperature = 58.8 + 273 = 331.8 K

Q: Calculate the entropy change of the universe (J/mol-K) when the entropy change of the system is 75.4…

A:

Q: The heat of vaporization AH, of methanol (CH;OH) is 35.3 kJ/mol. Calculate th

A: If   vapourisation of methanol       CH3OH(l)     ⇔  CH3OH(g)    △Hv = 35.3 KJ/mol     then…

Q: The boiling point of methanol is 65.0 °C and the standard enthalpy of formation of methanol vapor…

A: Given data: The Boiling point of methanol = 650C Standard enthalpy of formation of methanol = -201.0…

Q: Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g)…

A: ★ Answer : Reaction 2  is non spontaneous. ★ Explanation :

Q: A 33.0 g sample of quartz, which has a specific heat capacity of 0.730 J-g C, is dropped into an…

A: Since water is at higher temperature than quartz therefore heat is transferred from water to quartz…

Q: Consider the reaction Cl,(g) + Br,(g) → 2 BrCI(g) at 25 °C. Using the information in the table,…

A:

Q: If the helium was open to the atmosphere and you heated it from 25°C to 100°C, would the change in…

A: the change in entropy will be larger  than heating it in a sealed box.

Q: Calculate the entropy change that occurs when 1.00 mol of water freezes at its freezing point.

A:

Q: For the reaction 2NH3(g) + 202(g)¬N20(g) + 3H,0@) AH° = -683.1 kJ and AS° = -365.6 J/K The maximum…

A: The thermodynamic equation of energy is shown below: Where; ∆H= change in enthalpy T= temperature…

Q: Two systems, each composed of two particles represented by circles, have 20 J of total energy. Which…

A: The system which has greater entropy has to be given and the reason has to be explained.

Q: For the reaction N₂(g) +202 (g) → 2NO₂(g) AH° = 66.4 kJ and AS° = − 122 J/K The equilibrium constant…

A:

Q: For the reaction2CO(g) + 2NO(g)2CO2(g) + N2(g)ΔH° = -746.6 kJ and ΔS° = -198.0 J/KThe maximum amount…

A: The given balanced equation can be expressed as: Calculate the standard free energy by using the…

Q: For the reaction CO(g) + Cl2(g) →COC2(g) AG° = -63.1 kJ and AS° = -137.3 J/K at 329 K and 1 atm. The…

A:

Q: Consider the reaction described by the chemical equation shown. 3 C,H,(g) C,H,1) AHxn = -633.1 kJ…

A:

Q: Calculate the entropy change (in J/K) of the universe (AS universe) that takes place when phosphene…

A:

Q: The heat of fusion AH of carbon disulfide (CS2) is 4.39 kJ/mol. Calculate the change in entropy AS…

A: Step 1: Step 2: Step 3: Step 4:

Q: If the entropy of a reactions is -264.54 J/ mole K and the enthalpy of the reaction is 117.63 kJ/…

A:

Q: For the reaction 2502(g) + 02(g)2S03(g) AG° = -132.2 kJ and AS° = -187.9 J/K at 349 K and 1 atm. The…

A:

Q: Calculate AH and AS for the following reaction at 25 °C. Use the AH; and S" values in this table of…

A: To calculate the enthalpy change (ΔH), entropy change (ΔS), and Gibbs free energy change (ΔG) for…

Q: When heated, CaCO, decomposes into CaO and CO₂ according to the following equation: CaCO,(s)=CaO(s)+…

A: Given,CaCO3 (aq) + CO2 (g)

Q: There is a natural tendency for the universe to have increased entropy.

A: Given statement is true or false ?

Q: Consider the following reaction at constant pressure. Use the information below to determine the…

A:

Q: Enter your answer in the provided box. Water gas, a mixture of H2 and CO2, is a fuel made by…

A: Here we are required to find the temperature at which the reaction begins to favour the formation of…

Q: Chemists have been performing experiments with the newly discovered element X to determine its…

A: The reaction given is   And ΔHo for the reaction = -191 KJ Given : Under standard conditions, X is…

Q: Calculate the change in entropy that occurs in the system when 1.33 mol of acetone (C3 H6O)…

A: Given: The number of moles of acetone is 1.33 mol The normal boiling point is 56.1oC The heat of…

Q: The heat of vaporization AH, of heptane (C,H16) is 31.2 kJ/mol. Calculate the change in entropy AS…

A: Given: The heat of vaporization of heptane = 31.2 kJ/mol We have to calculate the entropy change…

Q: It is determined that a particular chemical reaction has AH°rxn = 105 kJ and As°rxn = 252 JK1.…

A: For spontaneous reaction delta G must be negative....

Q: Calculate the entropy change of the universe (J/mol-K) when the entropy change of the system is 38.4…

A: Given the entropy change of the system, ∆Ssystem = 38.4 J/mol-K

Q: In a typical cold pack (used for sports injuries), a salt such as ammonium nitrate is kept in a…

A: Dissolution of ammonium nitrate in water is given by, NH4NO3(s)→H2O(l) NH4+(aq)+NO3-(aq)   ∆H=+25.09…

Q: Find the temperature (in K) above which a reaction with a ΔH of 170.8 kJ/mol and 64.5 ΔS J/K·mol…

A: Find the temperature (in K) above which a reaction with a ΔH = 170.8 kJ/mol and ΔS = 64.5 J/K·mol…

Q: ΔEsys

A:

Q: enthalpy a state function. Fill in the blank: 4. For a change that takes place at constant pressure,…

A:

Q: For the reaction HCI(g) + NH3(g)→→NH4Cl(s) AG° = -103.7 kJ and AS° = -284.8 J/K at 254 K and 1 atm.…

A: Given , Reaction : HCI (g) + NH3(g) → NH4CI(s) ∆G°=-103.7 kJ∆S=-284.8 JKT=254 KPresssure , P = 1 atm

Q: Potassium nitrate is mixed into water which causes an endothermic reaction.  The initial water temp…

A:

Q: The heat of vaporization AH, of methanol (CH,OH) is 35.3 kJ/mol. Calculate the change in entropy AS…

A:

Q: When heat is added to the surroundings, the entropy of the surroundings increases. How does Ssurr…

A: We know that Entropy is defined the randomness of system. Entropy is represent by the symbol "S"

Q: The standard enthalpy of vaporization of a liquid is 20.7 kJ/mol at the liquid's normal boiling…

A: Given, dHv° = 20.7 kJ/mol = 20.7 x 1000 J/mol Tb = (52.4 + 273.15 K) = 325.55 K To calculate the…

Q: The experimental enthalpy of dissolution of ammonium chloride were determined using another…

A: Moles of NH4Cl ,n =  0.022 mol Change in temperature,∆T =  -10.3°C mass of the solution: 51.7 g…

Q: Suppose that two systems, each composed of two particles repre- sented by circles, have 20 J of…

A: Given data: Two systems, each compound of two particles, represented by the circkes have 20 J of…

Q: The enthalpy of vaporization of ammonia is 23.35 kJ/mol at its boiling point (–33.4°C). Calculate…

A: Given: Enthalpy of vaporization of ammonia = 23.35 kJ/mol. Boiling point of ammonia = -33.4 oC And…

Q: Using the tables, what is the standard Gibbs free energy change for the following reaction? 2 Cu (s)…

A:

Q: A closed vessel of volume 2.1 L contains a mixture of neon and fluorine gas. The total pressure of…

A: Given,  Volume of the closed vessel = 2.1 L  Total pressure = 3.8 atm at 0°C  The mixture is heated…

Q: The heat of vaporization AH, of acetic acid (HCH₂CO₂) is 41.0 kJ/mol. Calculate the change in…

A: Entropy change is the process that computes the randomness in a thermodynamic system. Given: Heat of…

Q: The bombardier beetle uses an explosive discharge as a defensive measure. The chemical reaction…

A:

Q: Calculate the change in entropy (J/mol·K) for the surroundings for a reaction where ΔH° = 126.9…

A: