Copper Bromine Helium

Q: List any chemical changes you can think of in which entropy increases

A: Change in Gibbs free energy is given by,     ∆G = ∆H - T∆S ∆H = change in enthalpy ∆S = change in…

Q: methanol, CH3OH, vaporizes at 25°C is 35.4 kJ/mol. What is the entropy change (in J/K) when one mole…

A: Given,   □Hvap = 35.4 kJ/mol T = 25 °c = 298 K □S = □H/T   = 35.4 ×1000/298 = 118.79 J/K-mol

Q: Hydrogen reacts with nitrogen to form ammonia (NH3) according to the following reaction: 3 H2 (g) +…

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Q: Consider the following reaction: 2 NO(g)  N2(g) + O2(g) The enthalpy change at 298 K for this…

A: The given equilibrium reaction is  2 NO(g) ---------->  N2(g) + O2(g) The enthalpy change at 298…

Q: at what temperature will this reaction be exactly at equilibrium?

A: Enthalpy change (∆Ho)=-162.2 kJ =-162.2  X 103J Entropy change (∆So)=104.2 J/K ∆Go=0 at equilibrium…

Q: Consider the reaction 3NO (g) → NO2(g) + N2O (g) a. Using a thermodynamic data table, calculate Go…

A: Given reaction: 3NO (g) → NO2(g) + N2O (g) Given: ∆G∘f(NO2)= 51.84 KJ/mol ∆G∘f(N2O) = 103.59 KJ/mol…

Q: The balanced chemical equation for the combustion of propane gas is: C3H8 (g) + 5 O2 (g) --> 3 CO2…

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Q: Oxygen (O₂) is necessary for cellular respiration; it must be transported from the lungs to tissues…

A: There is following relationship between Gibbs free energy change and Equilibrium constant - ∆G° = -…

Q: use the data below to calculate the temperature at which the dissociation of I2(g) is 50% at 1 atm…

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Q: Zn(s) + 2HC1(aq) → ZnCl2 (aq) + H2 (g) + 153kJ For this reaction at 25°C, • Change in enthalpy: […

A: The reaction given is,

Q: What is the entropy change (in J/K) associated with the formation of 15.0 g of SO2 for the reaction…

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Q: Using enthalpies of formation (See the Supplemental Data), calculate ΔH° (in kJ) for the following…

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Q: Calculate the temperature of the following reaction,  If ΔGrxn° = -29.22 kJ/mol,  ΔH°= 9.12 kJ/mol…

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Q: Using enthalpies of formation (See the Supplemental Data), calculate ΔH° (in kJ) for the following…

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Q: Calculate the entropy change (in J/K) that occurs when 15.3 g of ice melts at its normal melting…

A: we have to calculate the entropy change

Q: Calculate the entropy change (in J/K) that occurs when 31.7 g of ice melts at its normal melting…

A: we have to calculate the entropy change

Q: Consider the following equation: 3C2H2(g) ↔ C6H6(g) ΔGof(C2H2, g) = +209.2 kJ/ mol; ΔGof(C6H6, g) =…

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Q: A particular reaction has a ΔHo value of -141. kJ and ΔSo of -104. J/mol K at 298 K. Calculate ΔGo…

A: We are given :648. K Change in enthalpy (ΔHo)  =   -141. kJ change in entropy (ΔSo)  = -104. J/ 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: 6) Consider H;0 going from the gas phase to liquid phase to solid phase. Describe the changes in…

A: In the vapor state, the gas phase of water, water molecules have the highest kinetic energy and this…

Q: NH3 has a normal boiling point of –33.34°C, and its ΔHvap is 23.5 kJ/mol.  Calculate the molar…

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Q: Given the particulate models here that depict Cu in solid form, Br2 in liquid form, and He in…

A: The Gibb’s equation of thermodynamic purposed a relation between ΔS, ΔH and ΔG with Temperature.…

Q: The enthalpy of fusion (∆Hfusion) for the melting of water is 6.02 kJ/mol.  This phase change from…

A: The entropy change ∆S when a system gets a quantity of energy q at a constant temperature, T, is…

Q: A compound melts at -55 ∘C and has a heat of fusion of 21 kJ/mol.  Calculate its change in entropy…

A: Melting point = -55°CT = (-55 + 273.15) K = 218.15 KHeat of Fusion = 21 kJ/mole = ∆H

Q: What is the change of entropy in the vaporization of 5 grams of ice cube at 0C to steam at 100 C.…

A: The degree of randomness of the system is called entropy. Specific heat capacity of water(c)=…

Q: Calculate ΔGo for the following reaction given the following thermodynamic properties at 25oC:…

A: Since, From Gibbs-Helm Holtz equation, ∆G° = ∆H° - T∆S° Thus,

Q: Which of the following processes results in the largest decrease in Entropy? The heat of fusion of…

A: Entropy an be defined as the thermal energy per unit temperature that is unavailable for doing a…

Q: Calculate the standard free energy ΔGo (in kJ/mol) knowing that the equilibrium constant Kc is…

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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: Consider the reaction below and its corresponding thermodynamic data to answer the following…

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Q: Dissolution of ionic compounds generally involves an increase in entropy (+ΔS°), but for a few…

A: entropy is measurement of randomness.As the randomness increase entropy also increase. In…

Q: Calculate the standard free energy change (kJ/mol) for the reaction shown at a temperature of 298.15…

A: According to the question we have a reaction between the nitrogen gas and oxygen gas which is as…

Q: When 0.783 g of benzoic acid, C7H6O2 (122.12 g/mol) is burned in a bomb calorimeter, the temperature…

A: Given , mass of benzoic acid = 0.783 g

Q: Given the particulate models here that depict Cu in solid form, Br2 in liquid form, and He in…

A: The change in entropy of copper when converted to a gas :Given:S° for Cu(s) = 33.2 J/(mol•K)S° for…

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: You discover a new chemical reaction that has a standard entropy change equal to 167.1 J/mol•K and a…

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

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Q: Given the particulate models here that depict Cu in solid form, Br2 in liquid form, and He in…

A: The Gibb’s equation of thermodynamic purposed a relation between ΔS, ΔH and ΔG with Temperature.…