Which is more efficient, a butane lighter or an electric lighter (such as can be found in most automobiles)? Explain.

Q: • The thermite reaction is quite a common reaction and is spectacular. Iron (III) o de and metallic…

A: As per the guidelines only one question can be answered at a time. Please post other question…

Q: Which of the two processes produces the higher amount of work? O Isochoric decrease in pressure…

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Q: The dissolution of ammonium nitrate occurs spontaneously in water at 25 °C. As ammonium nitrate…

A: On dissolution, the temperature of the reaction decreases which means that the reaction is…

Q: Determine the AU°reaction at 25 °C (in kJ/mol) for the following reaction: SİCI4(I) →Si(s) + 2C12(g)…

A: Internal energy (U) is  the total amount of kinetic and potential energy possessed by the molecules…

Q: Consider the greenhouse gases, CF2Cl2 and CH2CF2.  These have the following properties: CF2Cl2:…

A: The reaction given is CF2Cl2 +  H2 ⇌  CH2CF2 +  Cl2

Q: A chemical reaction takes place and the H is recorded for reactants as being 200 kJ.  The products…

A: For a chemical reaction, the enthalpy of reaction (ΔHrxn ) is the difference in enthalpy between…

Q: Global warming refers to unusual increased of the Earth's temperature due to the greenhouse gases…

A: Ans.1 Entropy and global warming: Global warming impacts the thermodynamics of the climate system by…

Q: Consider the decomposition of liquid benzene, C6H6(1), to gaseous acetylene, C2H2(g): 1 C6H6) ►…

A: 13C6H6(l) → C2H2(g)                        ∆H = +210 kJ 33C6H6(l) → 3 C2H2(g)                   3×…

Q: How is enthalpy related to the spontaneity of a reaction? A. AH does not affect spontaneity. B. AH0…

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Q: How much energy is released when 30.0g of water are formed in the reaction below? 2H2(g) + O2(2) →…

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Q: For the following reactions at constant pressure , predict if ΔΗ > ΔE, ΔΗ ΔΕ Ο ΔΗ= ΔΕ b. 4NH3 (9) +…

A: The answer for  a) ∆H=∆E b) ∆H>∆E c) ∆H<∆E The detailed explanation for this answers is…

Q: The temperature of the water bath is monitored, and it is determined from this data that 215. kJ of…

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Q: Consider the reaction 4HCl(g) + O2(g) ----> 2H2O(g) + 2Cl2(g) Using the standard thermodynamic…

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Q: When the environment is contaminated by a toxic or potentially toxic substance the substance tends…

A: It is stated by second law of thermodynamics, that entropy of universe gets increased in a…

Q: Determine △H o for the decomposition of hydrogen peroxide. H 2O 2(l) →   O 2(g) + H 2O(l) Given:  H…

A: To solve this problem we use given two thermochemical equation to calculate the enthalpy of reaction…

Q: Consider the reaction: CO2( g) + CCl4( g)<------>2 COCl2( g)Calculate ΔG for this reaction at…

A: The change in Gibbs free energy is calculated using the following expression.…

Q: Entropy means ______ to promote combination of elements to form new substances or compounds:  a.…

A: Entropy is a state function. It is the energy that measures ability of a system to do work.

Q: Among the three laws of thermodynamics, which is the most related to Le Chatelier’s principle?

A: According to the second law of thermodynamics, if a process is occurring spontaneously, it would…

Q: For which of the following reactions is AS less than zero? a) MgCO3 (s) --> MgO (s) + CO2 (g) b)…

A: Entropy is defined as degree of randomness is a system. It is denoted by S .

Q: For the reaction at 25°C CalCa"||FeFe Determine E De termine AG De termine K

A: Given Reaction:                                                     Cd/Cd2+//Fe2+/Fe…

Q: Write down one chemical reaction of no work and explain how it shows the no work.

A: When the chemical reaction occurs, following factors are observed which is shown below: When a…

Q: Determine AHorxn for the decomposition of the following reaction: 2NOC1(g) N2(g) +0,(g) + Cl, (g)…

A: Enthalpy of formation for a reaction can be determined by the equation given below:…

Q: Why is free energy “free”? >

A: Free energy is denoted by the energy free to do work in a system.The various thermodynamic functions…

Q: Classify the following processes as spontaneous and nonspontaneous. (a) freezing of water at room…

A: Given the following processes: (a) freezing of water at room temperature (b) breakdown of liquid…

Q: process and the concept of thermodynamics in the following photo of the refrigerator.

A: concept of thermodynamics in refrigerators, air conditioners and  heat pumps. the concept involved…

Q: Determine AG° for the the reaction 2 NO2(g) → 2 NO(g) + O2(g) at 25°C. Substance AGt (kJ/mol) NO2…

A: ∆G°f for NO2 (g) = 51.3 KJ/mol ∆G°f for NO (g) = 86.6 KJ/mol ∆G°f for O2 (g) = 0 ( The standard…

Q: Determine the temperature of a reaction if K = 1.20 x 10⁻⁶ when ∆G° = +20.70 kJ/mol

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Q: Why first law of thermodynamics are very interesting topic in chemistry (give 5 reasons) and how do…

A: First law of thermodynamics states that energy can neither be created no destroyed but can be…

Q: 2. What is meant by: Facile reversibility of formation and decomposition reactions? 3. Why does…

A: Facile reversiblity of formation and decomposition means a reaction in which formation of compound…

Q: A metal is heated to a temp of 500 degC, it is then exposed to a temp of 38 degC. After 2 minutes,…

A: Intial temperature = 500℃  Final temperature = 190℃  Time taken  = 2 min.  We have to calculate A)…

Q: Which is more efficient, a butane lighter or an electric lighter (such as the ones traditionally…

A: To explain which is more efficient: A butane lighter or an electric lighter

Q: Biological process that involves the concept of thermodynamics

A: The human body obeys the laws of thermodynamics. Consider the experience of being in a small crowded…

Q: Consider the reaction: CO2(g)+CCI4(g) =2COC12(g) Calculate AG for this reaction at 25°C under the…

A: The Gibbs free energy is equal to the energy of the system that is used to do some useful work. It…

Q: The heat of reaction tells us what about a chemical reaction? O a. How fast the chemical reaction…

A: Given  Term = Heat of reaction  Definition or meaning = ?

Q: Determine how the following changes affect the given equilblirium reaction that is held in a closed…

A: Question 20 According to Le Chateliers principle, when a system under equilibrium is subjected to a…

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: A table of questions based on spontaneity, which are to be accomplished.

Q: 17. Consider a system consisting of the following apparatus, in which gas is confined in one flask…

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Q: ∆G for the reaction corresponds to the difference between the top left of the curve and the bottom…

A: ∆G is the change in free energy change in every chemical reaction. The change in free energy can be…

Q: Nitrogen + hydrogen - ammonia is exothermic What will happen if we use low temperature? Less ammonia…

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Q: State second law of thermodynamics.

A: Thermodynamics deals with heat and temperature and their relation to work, energy, radiation and…

Q: Determine type of system described: 1) Reaction in a beaker on a lab bench: A- isolated system B-…

A: Open system - Energy as well as matter exchange Closed system- only energy exchange Isolated system…

Q: 6. Calculate the heat of decomposition for this process at constant pressure and 25°C: CaCO3(s) →…

A: Given:∆H°f of CaCO3 = –1206.9 kJ/mol∆H°f of CaO = –635.6 kJ/mol∆H°f of CO2 =   –393.5 kJ/molBalanced…

Q: What are the energy transformations in a fossil fuels power plant? to to to :: chemical energy ::…

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Q: The entropy and enthalpy of a reaction are both negative. Is the reaction spontaneous? Explain

A: The entropy and enthalpy of a reaction are both negative. Is the reaction spontaneous has to be…

Q: A reaction occurs in a flask which is connected to a movable piston. Which image shows work done on…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For the…

Q: 1. What is free energy? What is its symbol?

A: Since you have posted more than 1 question, we will solve only first question for you. If you want…

Q: Is it more efficient to heat your home with a natural gas furnace or an electric furnace? Explain.

A: Natural gas furnace is the primary source to heat home. Heat extracted out from burning of natural…