iling point of meth

Q: Mercury has the following physical properties: normal melting point = -39°C, normal boiling point =…

A: Normal melting point = -390CNormal boiling point = 3570CHeat of fusion = 2.33 kJ/molHeat of…

Q: Use the table below to answer the questions that follow. Thermodynamic Quantities for Selected…

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Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 396.0 Torr at 45.0 °C. Calculate…

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Q: Calculate the ΔHºrxn of the following processes at 25 degrees celsius and determine whether each…

A: ΔHºrxn is given by the difference of ΔHºproducts  and ΔHºreactants.If ΔHºrxn is negative, then it is…

Q: A 6.620g sample of C12H24(l) was burned in a bomb caloriemter whose heat capacity had been…

A: Given: Mass of C12H24 is 6.620 g Molar mass is 168.319 g/mol Mass of water is 1250.0 g Initial…

Q: 1. Calculate the enthalpy change, ΔHΔ�, for the process in which 43.6 gg of water is converted from…

A: Given that   mass of water = 43.6 g   Initial temperature = 19.3 °C   Final temperature = 25.0 °C…

Q: Calculate ∆Gº for the reaction, 2C2H6(g)+5O2(g)→4CO(g)+6H2O(g), given ∆Gºf for C2H6(g)=-32.9 kJ/mol,…

A: 2C2H6(g)  +  5O2(g)  →  4CO(g)  +  6H2O(g) ∆Gºf for C2H6(g)=-32.9 kJ/mol, ∆Gºf for CO(g)=-137.2…

Q: Determine ΔH°rxn at 25 °C for the reaction 2 NOCl(g) → N2(g) + O2(g) + Cl2(g) given that the…

A: Given, balanced chemical reaction as follows,2 NOCl(g) → N2(g) + O2(g) + Cl2(g)standard heat of…

Q: Calculate the ΔH for the following reactions:  A- Mg (s) + C (s, graphite) + 3/2 O2 (g) > MgCO3 (s)…

A: Calculate the ΔH for the following reactions:

Q: Consider the following reaction: SO:{3) + CaO(s) = CasO4ls). If AG°is - 345 kJ/mol for this reaction…

A: Given, ∆G ° = -345 KJ/mol  Temperature = 298 K  Keq = ?

Q: Consider the following reaction at 25 °C: 3 Ni(s) + N2(g) + 3 H20(g) → 3 NiO(s) + 2 NH3(g) Given the…

A: Given,

Q: thermochemical equation

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Q: A 2.5 L cylindrical tank at 1 atm contains a 15.0 g mass of gaseous propyl alcohol (assume ideal gas…

A: We have to calculate entropy change of First process i.e for gaseous propyl alcohol. Given : 1 atm =…

Q: The addition of 121  g potassium fluoride to 591  mL of water (d = 1.00 g/mL) causes the temperature…

A: The mass of solution is calculated as shown,

Q: Sulfur dioxide reacts with oxygen to produce sulfur trioxide. Thermodynamic Data Substance ΔfH∘…

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Q: Given these values, ΔHorxn = -95 kJ; ΔSorxn = -157 J/K; T = 298 K; determine ΔSuniv.     -162 J/K…

A: Answer:- This question is answered by using the simple concept of calculation entropy change of the…

Q: The standard enthalpy of formation of gaseous H2O at 298 K is -241.82 kJ/mol. What is the ΔH at 373…

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Q: The conversion of graphite to diamond involves an internal energy change (ΔU) of 5.1 kJ mol-1 and a…

A: Given that, for the conversion of graphite to diamond involves an internal energy change (ΔU) of 5.1…

Q: Calculate ΔG rxn for the following reaction at 639.2 K if the reaction below has a ΔH o rxn of…

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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: The value of ΔH for the following reaction is +52.0 kJ/mol at 298K. What is the value of ΔU in…

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Q: Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25oC, diamond changes to…

A: To find: ∆H for the reaction

Q: A particular reaction has a ΔHo value of -169 kJ and ΔGo of -156 kJ at 524 K. Calculate ΔSo at 524 K…

A: The relation between ΔHo, ΔGo and ΔSo is shown below. ∆G∘=∆H∘-T∆S∘

Q: Determine the value for ΔSsurr for the following reaction at 40.0°C. 2 CO(g)  +  O2(g)  →→  2…

A: Given reaction: 2 CO(g)  +  O2(g)  →  2 CO2(g)     ΔHorxn = –566.0 kJ  We have to find ΔSsurr.…

Q: At 25 °C, what is the Keq for a reaction where ΔH∘= –9.3 kJ/mol and ΔS∘= 75.5 J/mol·K?

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Q: For the reaction: ZnO(s) → Zn(s) + O₂ (g) AH +111.00kJ and AS = +153.01 J/K. Is there a temperature…

A: Equilibrium temperature of the reaction is to be determined.

Q: Calculate the change in enthalpy for the following reaction: A + 3B → D ∆Hrxn =? Given: 3A + 12B →…

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Q: phorus oxychloride (POCl3) is a chlorinating agent that is frequently used in organic chemistry

A: We have to tell whether reaction is spontaneous

Q: Given these values, ΔHorxn = +75 kJ; ΔSorxn = +120 J/K; T = 298 K; calculatethe free energy change…

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Q: The value of ΔH° for the reaction below is −5314 kJ.  The amount of heat that is released by the…

A: Balanced chemical equation: 2C4H10(g) + 13O2(g)  → 8CO2(g) + 10H2O(l)      ΔH° =  −5314 kJ From the…

Q: Given ΔΗ° = +257.7 kJ/mol and AS° = +213.7 J/mol K, determine AG° for the reaction 3 N₂(g) + 2 O3(g)…

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Q: Calculate ∆H for the reaction 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), from the following data. 1.…

A: 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g) 1. N2 (g) + O2 (g) → 2NO (g) , ∆H = -180.5 kJ 2. N2 (g) +…

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 ∘C and 215.0 Torr at 45.0 ∘C. Calculate…

A: Given : Vapour pressure of liquid at 23 oC = 92.0 torrAnd vapour pressure of liquid at 45.0 oC =…

Q: The normal boiling point of a substance is 433 °C. Calculate the pressure at which this substance…

A: this solution is done using the clausius-clapeyron equation .

Q: 20. Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and…

A: The problem is asking us to calculate the change in internal energy (ΔE) of a system. We are given…

Q: For the reaction N20 (g) + NO2 (g) →3 NO (g), at 25°C AH° = +155.6 kJ/mol and AS° = +172.4 J/mol K.…

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Q: A certain substance has an enthalpy of fusion of 6.65 kJ/mol and an entropy of fusion of 22.8…

A: The entropy of fusion of the solid is given by: Where ∆S = change in entropy = 22.8 J/mol/K ∆H =…

Q: A 4.20 g of ice at 0 0C is melted on the surface of a 35.0 g of aluminum metal surface which is…

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Q: Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶…

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Q: Calculate ΔrH° for the combustion of methane gas, CH4 : CH4(g)  +   2 O2(g)  →   CO2(g)  +  2…

A: The standard enthalpy change for the formation of one mole of a compound from its elements in their…

Q: Use the following data to calculate AGºrxn for the equation below using enthalpy and entropy of…

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Q: 1.Consider the complete combustion of methane gas, CH4(g): Which of the following BEST describes the…

A: Entropy is defined as measure of randomness or disorder of system.

Q: The normal boiling point of methanol is 64.7∘C and the molar enthalpy of vaporization if 71.8kJ/mol.…

A: We know that , at normal boiling point, Gibb's free energy change is given by,…

Q: Diethyl ether (CH3CH2OCH2CH3) was one of the first chemicals used as an anesthetic. At 34.6°C,…

A: Given. the vapour pressure of diethyl ether at  34.6°C = 760 atm the vapour pressure of diethyl…

Q: Consider the following thermochemical equations. Reaction ΔrH° / kJ mol−1 HBr(g) ⟶ H(g) + Br(g)…

A: Reaction ΔrH° / kJ mol−1 HBr(g) ⟶ H(g) + Br(g) 365.7 H2(g) ⟶ 2 H(g) 436.0 Br2(g) ⟶ 2 Br(g)…

Q: 26. From the following information, determine AS for the following: N(g) + O(g) → NO(g) AS=? N2(g) +…

A: The reactions given are 1) N2(g) + O2(g) ------> 2 NO(g)…