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

Q: State the third law of thermodynamics?

A: Third law of thermodynamics tells that the entropy or the randomness of the substance becomes stop…

Q: The specific heat capacity of silver is 0.24 J/°C·g. Calculate the energy required to raise the…

A: Heat capacity is an extensive property.  But specific heat capacity is intensive property.  Heat…

Q: Calculate the specific heat capacity of the unknown metal given the mass of the metal is 225g, the…

A: Given for a sample of metal  mass of metal = 225 gm temperature rise ∆T = 13°C energy absorb Q =…

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: Hydrogen peroxide can decompose to water and oxygen by the reaction 2 H2O21l2 ------>2 H2O1l2 +…

A: 2*36 g H2O2 release 192 KJ heat

Q: If 117.4 g of copper at 100.0 ℃ is added to 26.7 grams of water at 25.7 ℃, what is the final…

A: Given , 117.4 g of copper at 100.0 ℃ is added to 26.7 grams of water at 25.7 ℃

Q: The amount of work to compress a gas is 80J, 30 J of heat is given off to the surroundings.…

A: Given,Work to compress a gas = 80 JHeat given off by the system = 30 JRequired,…

Q: The lead-acid storage battery is the oldest rechargeable battery in existence. It was invented in…

A: H2SO4 (l)  ---->  SO3 (g)  +  H2O (l)                                 ∆H1= +113…

Q: nuch useful work has been extracted? (4) Where did the energy to do the work come from? 5) Does this…

A:

Q: Consider a fuel cell that uses methane ("natural gas") as fuel. The reaction is…

A: Enthalpy of formation of one mole of carbon dioxide (g) = -393.5 KJ Enthalpy of formation of one…

Q: Calculate ∆H◦for the reaction 2K (s) + 2H2O (l)→ 2KOH(aq) + H2 (g) A 5.00-g chunk of potassium is…

A: Given: mass of water = 1.0 kg mass of potassium chunk =5.0 g Initial temperature of water = 24.0 °C…

Q: How much heat is produced when 6.26 g of zinc metal reacts with oxygen gas under standard…

A: We have to calculate energy release in combustion of Zn.

Q: A. Consider an ideal gas enclosed in 1.00 L container at an internal pressure of 16.0 atm. Calculate…

A: A. Work done for the expansion of an ideal gas is equal to the product of external pressure and…

Q: Aluminium is a silvery-white light-weight metal that is soft and malleable. A 215.0 g piece of…

A:

Q: Most automobile engines are cooled by water circulating through them and a radiator. However, the…

A: The cooling capacity of a material depends on its specific heat capacity value. Higher the specific…

Q: For the reaction 2CO(g) + O2(g)2CO2(g) G° = -515.1 kJ and S° = -173.1 J/K at 294 K and 1 atm. The…

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Q: Calculate the required value for each reaction.  Reaction; CH4 + 2O2→CO2 +2H2O + 806 kJ A) what…

A: CH4 + 2O2 ==> CO2  + 2H2O      deltaH = +806 KJ

Q: 13. A five liter cylinder contained 5 moles of oxygen gas at 20°C. Due to sudden leakage through the…

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Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 24.0 atm. Calculate…

A: Whenever gas expands against an external pressure, work done is negative because energy gets…

Q: 7. Consider reaction H2(g) + Cl2(g) + 2HCI (g) AH = -184.6 kJ/mol If 3 moles of H2 react with 3…

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Q: Consider the following reaction for the synthesis of nitrogen dioxide: N2(g) +202(g) →→ 2NO(g) At+34…

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Q: Consider the following specific heats of metals.Metal      Specific Heatcopper      0.385…

A:

Q: The ∆Hfº of MgO is –602 kJ•mol‒1.  When 20.15 g MgO is decomposed at constant pressure according to…

A: Given,ΔHf = -602 KJ/molMass of MgO = 2015 gMolar mass of MgO = 40.3044 g/mol

Q: Two pieces of metal (A and B) are in contact with each other and initially at different…

A: For Metal A: mass of metal A = 7.50 g Initial Temperature = 24 oC Final Temperature = 35 oC Change…

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 22.0 atm. Calculate…

A: The question is based on the concept of chemical thermodynamics. we have to calculate the work done…

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: Metal A has a heat capacity of 0.450 J/g°C while metal B has a heat capacity of 1.250 J/g°C. If both…

A: Specific Heat capacity Cs, For Metal A : Cs = 0.450 J/g°C For Metal B : Cs = 1.250 J/g°C Energy…

Q: If pressure is expressed in atmospheres and volume is expressed in liters, PAV has units of L atm…

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Q: Exactly 46.33 kJ of heat is transferred to a 1.389 kg slab of nickel at a temperature of 12.7°C. (a)…

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Q: A 350.0 g lead rod is heated and then is placed into an insulated vessel containing 50.0 g of water…

A: We know that if two bodies that have significant difference in temperature, are in contact, the heat…

Q: When a 10.0 g metal sample (0.85 J/goC) at 110.oC is placed in an insulated cup of water at 25oC,…

A: According to Law if calorimetry Heat absorbed by a system = heat released by another system Here the…

Q: 100g of two unknown metals are presented. You take a blow torch to both for 10.00s. You notice that…

A: 100 kg of two unknown metal are heated for 10 .00 sec, using a blow torch. Metal A is incredibly…

Q: glass of water at room temperature i 1st Law of Thermodynamics Zeroth Law of Thermodynamics

A: The total energy of glass water remains the same which means there is no exchange of energy or…

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 10.0 atm. Calculate…

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Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 14.0 atm. Calculate…

A:

Q: For the reaction 2CO(g) + O2(g)2CO2(g) ΔG° = -515.1 kJ and ΔS° = -173.1 J/K at 294 K and 1 atm.…

A: Given data,∆G=-515.1kJ∆S=-173.1J/Kmoles=1.66

Q: During a breath, the average human lung expands by about .50 L. If this expansion occurs against an…

A: Work in thermodynamics is the amount of energy that is transferred from one system to another system…

Q: A 1.00 g sample of Ne (g) at 1.00 atm pressure and 27 oC is allowed to expand into an evacuated…

A: Solution- on the all above process work done will be zero.  Because the expansion of an ideal gas in…

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: onsider that you have a balloon containing 2.00 moles of CO and 1.00 mole of O2 which is in a room…

A: Moles of CO = 2 moles Moles of O2 = 1 mole Temperature = 25.9 ◦C OR (273.15 + 25.9) K Pressure = 1…

Q: After transfer of 1.80 kJ of thermal energy to a 0.572-kg block of copper the temperature is 48.8…

A: We have given that  After transfer of 1.80 kJ of thermal energy to a 0.572kg block of copper the…

Q: If we define the system as the reactants and products, what isthe sign of work in this process,…

A: Interpretation - The sign of work in the given process is positive or negative is to be explained.

Q: the same amount of heat is added to 5.00 g samples of each of the metals below, which metal will…

A: Specific heat capacity is amount of heat needed to increase the temperature of one gram of substance…

Q: Metal A has a heat capacity of 0.450 J/goC while metal B has a heat capacity of 1.250 J/go C. If…

A: It is given that Metal A has a heat capacity of 0.450 J/g°C and metal B has a heat capacity of 1.250…

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 24.0 atm. Calculate…

A: Given data is as follows: The initial volume of the ideal gas V1 = 1.00 L The final volume of the…

Q: For the chemical reaction below, which statement is true about the reaction? N2H4 (1) + O2 (g) → N2…

A: Work done prediction for a Chemical reaction involving gaseous species can be done as follows:

Q: 2)  Automobiles air bags are filled via the decomposition of sodium azide, according to the…

A: The decomposition reaction of sodium azide is shown below:

Q: Consider the decomposition of zinc sulfide. ZnS(s) → Zn(s) + S(s)          ΔG° = +201.3 kJ…

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Q: system consisting of a gas placed in a cylinder with a movable piston loses an internal energy of…

A:

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 16.0 atm. Calculate…

A: