1) Calculate q when 430 kJ of energy has been released from a system that performed 110 kJ of work: a) 430 kJ b) 110 kJ c) 540 kJ d) 320 kJ

Q: Ethanol, C2H5OH, is made industrially by the reaction of water with ethylene, C2H4. Calculate the…

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Q: A balloonist begins a trip in a helium-filled balloon in early morning when the temperature is 15°C.…

A: Data given: Initial temperature, T1 = 15 °C = (273.15 + 15) = 288.15 K (T K = 273.15 + T °C) Final…

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

A: Pressure, P= 1 atm Temperature, T = 22°C = (22+273.15) K                          = 295.15 K Gas…

Q: 4. A 15.0g sample of melted aluminum is put into a calorimeter. The temperature of 90g of water…

A: Interpretation-  To determine the molar enthalpy of the solidification of aluminum when 15g of…

Q: A mixture of nitrogen and argon gas is compressed from a volume of 15.0L to a volume of 11.0L, while…

A: From thermodynamics, work done is calculated as: w = -PΔV   Or, w = -P(Vf-Vi)   where Vf and Vi are…

Q: 1.00 g CaO (molar mass = 56.077 g/mol) is dropped into a Styrofoam coffee cup containing 185 g H2O…

A: Given :-  CaO(s) + H2O(l) ➜ Ca(OH)2(s)   ΔH°rxn = –64.8 kJ/mol  Mass of CaO = 1.00 g CaO Molar mass…

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

A: Given information, Mass of NaN3 = 32.5 g Pressure of the gas = 1.00 atm Temperature of gas =  22°C =…

Q: Oxygen gas at 34.5 °C expands from 34.5 L and 45.7 L against a constant pressure of 750 mmHg. What…

A: T = 34.5oC = 273+34.5 = 307.5K number of moles of oxygen (n) = PV/RT = 0.98X34.5/0.082X307.5 =…

Q: For the reaction 2NH3(g) + 202(g)¬N20(g) + 3H,0@) AH° = -683.1 kJ and AS° = -365.6 J/K The maximum…

A: The thermodynamic equation of energy is shown below: Where; ∆H= change in enthalpy T= temperature…

Q: Consider the reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l), ΔH = –1.37 × 103 kJ When a 2.23 mol…

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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…

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Q: Calculate the work ( in kJ ) done during a reaction in which the volume expands from 12.0 L to 14.5…

A: Work done :-       Energy that is transmitted from one system to another in such a way that…

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

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Q: Acetylene is a gas used for welding metal. a. Write the balanced combustion reaction for acetylene,…

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Q: Imagine some helium in a cylinder with an initial volume of 1 liter and an initial pressure of 1…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: When 7.04 g of potassium sulfate (K2SO4) is dissolved in 114 g of water in a styrofoam calorimeter…

A: The q for water in given calorimeter is calculated by using following relation.

Q: A sample consisting of 3.0 mol CaCO3 (s) was heated to 800 oC, at which temperature the solid…

A: Interpretation - Given a sample consisting of 3.0 mol CaCO3 (s) was heated to 800 oC, at which…

Q: The First Law of Thermodynamics

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: a In the reaction of two moles of gaseous sulfur dioxide and one mole of gaseous oxygen to form two…

A: We can solve Given problem by using formula ∆H = ∆U + W Where  ∆H = enthalpy change  ∆U = Internal…

Q: Hydrogen peroxide decomposes according to the following reaction: H2O2(l) → H2O(l) + 1/2O2(g)…

A: Hydrogen peroxide is a chemical compound with the molecular formula H2O2. It decomposes and forms…

Q: When 4.03 g of ammonium perchlorate (NH4ClO4) is dissolved in 120 g of water in a styrofoam…

A: Heat energy (q) is calculated by,

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 0.0500 L sample of 0.500 M of a metal nitrate, M(NO3)2, is added to 0.0500 L of 0.500 M magnesium…

A: The required equation is given below.

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

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Q: N2(g)+3H2(g)→2NH3(g) AH°rxn=-92.6 kJ/mol f 2.0 moles of N2 react with 6.0 moles of H2 to form NH3,…

A: Work is calculated by  W= nRT And for ∆U we will use first law of thermodynamics.

Q: For the reaction 2NO(g) + 2H2(g) N2(g) + 2H2O(1) AH° = -752.2 kJ and AS° = -351.6 J/K The maximum…

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Q: reactions would work be done on the system (at constant temperature and pressure)?   Hg (l)   ->…

A: From the iupac sign conve ntion, Work done on the system is positive.  At constant temperature and…

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: Determine the amount of heat (in kJ) associated with the production of 3.26 ×104 g of ammonia…

A: From the given reaction we can see that 2 moles of ammonia is formed when heat associated with the…

Q: The endothermic decomposition of magnesium oxide is described in the chemical equation below.…

A: Reaction for which the enthalpy change has to be determined is the reverse of the given reaction…

Q: Oxygen gas at 34.5 "C expands from 34.5 L to 45.7 Lagainst a constant pressure of 750 mmHg. What is…

A: The values given are : T = 34.5o C Vinitial = 34.5 L Vfinal = 45.7 L P = 750 mmHg 1 L atm = 101.325…

Q: 1 mole of an ideal gas is at 6 atm pressure, occupies 3 L and has an internal energy of 2735.1 J.…

A: Here the system undergoes two different paths.  Path-1 is constant volume process Path-2 is constant…

Q: Consider the reaction C12 H22O1 (s) +1202 (g)+12C02 (g)+ 11H20(1) in which 10.0 g of sucrose, C12…

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Q: .8 A sample consisting of 1.0mol CaCO3(s) was heated to 800 °C, at which temperature the solid…

A: Solution - According to the question - Given - The reaction is CaCO3 (s)   CaO (s) + CO2 (g) So, 1…

Q: A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings. If the initial…

A: According to 1st law of thermodynamics:-∆u=q+wwhere,∆u= cange in internal energyq= heat given to the…

Q: When nitroglycerin explodes, the chemical reaction that occurs can be assumed to be C3HsN3O9(1) →…

A: The reaction for the explosion of nitroglycerin is given below : C3H5N3O9(l)  →  3CO2(g)  +  32N2(g)…

Q: Use the following to determine the enthalpy of formation of magnesium oxide: Mg (s) + 2HCI (aq)…

A: Hess's law states that total enthalpy change of a reaction is sum of all changes.

Q: 6600 J of heat flow into 0.014 m of a monatomic gas at 1.5 x 10° N/m². The gas expands isothermally…

A: Given: Amount of heat flow into the system = 6600 J Pressure  = 1.5 x 105 N/m2 Initial volume of gas…

Q: 18. The combustion of propane is shown by the following equation: C,H;(g) + 50,(g) → 3CO,(g) +…

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Q: Calculate the enthalpy change when a 2.841 g sample is burned in excess oxygen to form co2 and h20…

A: Answer:

Q: Consider the reaction C12 H22O11 (s) + 1202(g)→12CO2 (g) + 11H,0(1) in which 10.0 g of sucrose, C12…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Methanol can also be combusted in the presence of oxygen in order to release its energy. 16.0 g of…

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Q: estion 30 of 41 <. Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of…

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Q: For chemical reaction N2(g)+ 3H2(g) → 2NH3(g) at 298.15K the standard heat of reaction is -46.1 kJ.…

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Q: The value of AH° for the reaction below is -336 kJ. Calculate the heat (kJ) released to the…

A: We have a reaction,  CH4 + 3Cl2   →  CHCl3 + 3HCl ,   ΔH = –336kJ we need to find heat released when…

Q: Which of the following 1.00 mole of fossil fuel when burned (combustion in open atmospheres) will…

A: Work done by any system or on the system can be calculated by the formula , w = -P∆V