A balloon filled with 0.5 mol of an ideal gas contracts reversibly from 9.0 L to 4.0 L, in doing so, it loses 1500 J of heat. Calculate ΔU and ΔS and the temperature for the process

Q: A chemical reaction is run in which 138 Joules of work is done by the system and the internal energy…

A: Work done by the system is negative. So we use W= -138 J  Given: w= - 138J              ∆u= + 14J To…

Q: 5. The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASurr for…

A: CO(g) + H2(g) ----> CH3OH (l)

Q: You may have noticed that when you compress the air in a bicycle pump, the body of the pump gets…

A: Work is done on the system by the surroundings when the air is compressed in bicycle pump.…

Q: For the reaction 2co(g) + 2NO(g)→2C02(g) + N2(g) AH° = -746.6 kJ and AS° = -198.0 J/K The maximum…

A: The maximum amount of work that can be extracted from a reaction is given by Gibbs free energy.

Q: When 2.26 g of a salt dissolves in 121 mL of water (density = 1.00 g/mL) in a coffee-cup…

A: heat  capacity is defined as amount of energy needed to raise unit temperature of an object.

Q: Calculate the energy required to heat 751.0 g of mercury from -6.8C to 4.0C. Assume the specific…

A: Given: Mass of mercury ‘m’ = 751.0 g Initial temperature, Tinitial = -6.8oC Initial temperature,…

Q: A hot air balloon is being inflated to its full extent by heating the air inside it. In the final…

A: Delta E for the process = 790 kJ

Q: Indicate which of the following is independent of the pathby which a change occurs: (a) the change…

A: Indicate which of the following is independent of the path by which a change occurs .

Q: Glucose metabolism involves multiple processes including glycolysis, glyconeogenesis and…

A:

Q: Specific Heat Capacities of common substances: Water (1) = 4.184 Iron (s) =0.45L Aluminum (s) = 0.89…

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Q: A sample consisting of 1.0 mol CaCO3(s) was heated to 800 °C, at which temperature the solid…

A: SOLUTION: Step 1: The reaction of decomposition of calcium carbonate is as follows: CaCO3 (s) → CaO…

Q: 3. Compounds with carbon-carbon double bonds, such as ethylene, C,H,, add hydrogen (H,) in a…

A:

Q: 1.00 g Cao (molar mass = 56.077 g/mol) is dropped into a Styrofoam coffee cup containing 185 g H20…

A:

Q: C) Calculate the change in internal energy in each process, the change in total internal energy and…

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Q: plant use photosynthesis to produce glucose light energy+ 6CO2 + 6H2O =  C6H12O6 + 6O2 if a leaf…

A:

Q: Consider the combustion of butane gas:C₄H₁₀(g) +O₂(g) →4CO₂(g) +5H₂O(g) (a) Predict the signs of…

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Q: → 2 NO(g) ► 2 N2(g) + O2(g) AH = +180.7 kJ NO(g) + O,(g) → 2 NO,(g) AH = -113.1 kJ 2 N;O(g) → 2…

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Q: How many microstates are available to a substance in its liquid state

A: In statistical mechanics, a microstate is a specific microscopic configuration of a thermodynamic…

Q: Two gaseous pollutants that are found in auto exhaust are CO and NO. One way to eliminate these is…

A: The standard enthalpy change in the system explains the heat transferred in a system or the heat…

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

A:

Q: The combustion reaction for butane is C4H10(g) + 6.5 O2(9) → 4 CO2(g) + 5 H20(g). Is the internal…

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

Q: A chemical reaction is run in which 756 Joules of work is done on the system and the internal energy…

A:

Q: 3.) For each process, determine the sign of AS for the system: (a) decomposition of CaCO3(s) to give…

A: To solve this problem we have to determine the sign of ∆S  for the given system .

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

A:

Q: The AH° of the reaction is -1367 kJ. Calculate the work done on the system at 25°C. C2H5OH(1) +…

A: Work done (w) : w = -∆ngRT  w = - ( 2 - 3) x 8.314 x 298  w = 2477.572 J w = 2.48 kJ

Q: Why are work, w, and heat, q, not state functions?

A: State function only depends on the final system and on the initial system, it does not depend how we…

Q: 5.00 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water and the…

A: The question can be solved by giveb formula,  Q=m×C×dT where Q = heat energy (Joules, J),  m = mass…

Q: ch.6.2. calculate the internal energy change for a. one hundred(100.) joules of work is required…

A:

Q: Explain how is enthalpy related to spontaneity of a reaction?

A: The Gibbs free energy is related with enthalpy and entropy. It is shown by the formula given below.

Q: A block of CO2 weighing 15 g sublimes (converts from solid to gas) in a 5.0 L container at 25°C. How…

A: Given that the process is under isothermal conditions, this means that the process takes place under…

Q: (a) Consider the following chemical reaction: 3Fe2O3(s) + CO(g) → 2Fe3O4(s) + CO2(g) ΔH = ? Use…

A: Given: The thermochemical data, 4Fes + 3O2g → 2Fe2O3s                      ∆H° = -1652 kJ/mol…

Q: Calculate the change in enthalpy for the reaction of solid carbon (graphite) converting into solid…

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Q: Use the thermochemical data that follow to calculate the value of ΔH° for the reaction: 4 B  2 A + C…

A: Thermochemistry can be defined as the branch of chemistry that deals with heat energy associated…

Q: The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: a balloon filled with ammonia gas is injected with water. the balloon feels warm to the touch and…

A: Sign convention heat released = positive heat absorbed = negative

Q: A 2.50 g sample of powdered zinc is added to 100.0 ml.L of a 2.00 M aqueous solution of hydrobromic…

A: Given that Mass of zinc = 2.50 gTotal heat capacity = 448 J/KIncreases in temperature = 21.1 K To…

Q: Without doing any calculations, deduce the signs of ∆G, ∆H, and ∆S for the process.

A:

Q: Automobile airbags contain solid sodium azide, NaN3, that reacts to produce nitrogen gas when…

A: In this question,  it is given that sodium azide (NaN3) reacts on heating which produces nitrogen…

Q: sing enthalpies of formation (Appendix C), calculate AH° for the following reaction at 25°C. Also…

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Q: When 5.93 g of potassium sulfate (K,SO4) is dissolved in 111 g of water in a styrofoam calorimeter…

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Q: A chemical reaction is run in which 308 Joules of work is done on the system and the internal energy…

A:

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction…

A: We have reaction of P4 with Cl2 to give PCl5 as our desired reaction.

Q: The value of ∆G0 for forming water from elemental oxygen and hydrogen is -237kJ/mol. 2H2 +O2 -->…

A: ∆S° = [ sum of standard entropies of products ] - [ sum os standard entropies of Reactants ] Given…

Q: Given the standard enthalpies of formation for the following substances, determine the reaction…

A: Given reaction 2 N2H4 (g)  + 2 NO2(g) → 3N2(g)  + 4 H2O(g)∑∆H (reactants) =(2 * ∆Hf0(N2H4 (g)) + (2…

Q: A 15.00 g sample of CaO is dissolved in water in a calorimeter with a heat capacity of 4.37 kJ/oK.…

A: We have 15 g of CaO dissolved in calorimeter with heat capacity of 4.37 KJ/°K. temperature change is…

Q: Consider what happens when a sample of the explosive TNT is detonated under atmospheric pressure.…

A: Given information,      A sample of the explosive TNT is detonated under atmospheric pressure

Q: Phosgene, COCl2, can be formed by the reaction of chloroform, CHCl3(l) with oxygen:  2CHCl3(l) +…

A: Given:  ∆Ho = -353.2 kJ ∆Go = -452.4 kJ T = 25oC