What is the electrostatic potential energy between an electron and a proton that are separated by 80 pm? What is the change in potential energy if the distance separating the electron and proton is increased to 1.0 nm?

Q: 3- Calculate the molar enthalpy change when tungsten is heated by 15 K.

A: From standard sources we get, the molar heat capacity of tungsten is 24.2 J/mol K

Q: e the standard enthalpy change, 4,H for the reaction.

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Q: In an experiment to determine the energy content of a food, a sample of the food was burned in an…

A: Given that a current of 1.27 A was flowed through the calorimeter for 157 s. Heat capacity can be…

Q: Write down a chemical equation for which the enthalpy of the reaction is identical to the molar…

A: Enthalpy of formation is the enthalpy when 1 mole of product is formed by its constituent elements.

Q: Use the given standard enthalpies of formation to calculate the AH° (in kJ) for the hypothet

A: Using the formula  ∆H∘ = 2 -∆HfX2D + 3 -∆HfM2 + 2 ∆HfX2M + 2 ∆HfDM2   substitute all the given…

Q: 4. Calculate the standard enthalphy change (AH") for the following reaction: H2(g) + I2(g) → 2 HI(g)

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Q: Compute the net potential energy of a simple Na+Cl- pair. The equilibrium distance between the ions…

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Q: When 8.6 grams of a certain compound is dissolved in 78 grams of water in a calorimeter, the…

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Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: The standard reaction enthalpy of a reaction is given by   ∆Hrxn°=∑∆H° of the products -∑∆H° of the…

Q: Can the heat capacity of water be assumed when calculating the heat capacity of an unknown metal or…

A: The amount of heat absorbed (or released) by a fixed amount of a substance to change its temperature…

Q: Calculate the standard reaction enthalpy (AH° ) in kJ of the following reaction using the standard…

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

Q: enthalpy of

A:

Q: Consider an electron and a proton that are separated by 230 pm. What is the electrostatic potential…

A: Given data:  Distance d = 230 pm Formula used: Eelectrostatic=KQ1Q2d

Q: (a) What is the electrostatic potential energy (in joules) betweenan electron and a proton that are…

A: (a) The formula for calculating the electrostatic potential is shown below. where the variables…

Q: what is the standard enthalpy change for the reaction: (3) C2H4(g) + H2(g)C2H6(g) AH° = ?

A:

Q: Calculate the standard enthalpy change for this reaction:  Mg(s) + 2H2O(l) -> Mg(OH)2(s) + 2H2(g)

A: ∆H°=∆Hproduct=∆Hreactant

Q: (a) What is the electrostatic potential energy (in joules) betweentwo protons that are separated by…

A:

Q: Determine the enthalpy change for thedecomposition of S O 3 to S and O 2 .

A: The relation to determine the enthalpy of the reaction is shown below.…

Q: The enthalpy of sublimation of calcium at 25 °c is 178.2 kJ mol- 1.How much energy (at constant…

A: The overall process for the conversion of calcium to plasma is shown below.…

Q: Which statement disagrees with the second law of thermodynamics? During energy conversion, some…

A: The branch of chemistry which involves the study of heat transfer, work done and energy change of…

Q: What is the electrostatic potential energy between an electron and a proton that are separated by 53…

A: The electrostatic potential energy between an electron and a proton is calculated as,

Q: How much energy (at constant temperature and pressure) must be supplied as heat to 10.0 g of…

A: CL2 →10 gmmole=1071CL2→CI-+CI+1071mole                1071    1071

Q: Which of the following is a statement of the first law of thermodynamics? A AE = Efinal - Einitial…

A: the first law of thermodynamics is based on the law of conservation of energy. it said that energy…

Q: Identify the force present and explain whether work is done when  a positively charged particle…

A: Work is said to be done if an object is moved against a force.  A positively charged particle gets…

Q: Calculate the enthalpy of the reaction: 2C2H2 (g) + 5O2 (g)  2H2O(g) + 4CO2 (g)

A: The standard enthalpy of reaction for a chemical reaction is the difference between total reactant…

Q: Determine the enthalpy (in kJ/mol) for the reaction 4 NH: (g) + 5 Oz (g) → 4 NO (g) + 6 H2O (g).

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Q: The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt = 1…

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Q: the enthalpy for the decomposition of liquid water into gaseous hydrogen and oxygen

A:

Q: Calculate the enthalpy for the reaction, BaC₂ (s) + 2 H₂O (l) → Ba(OH)₂ (aq) + C₂H₂ (g)

A: The balanced reaction given is, => BaC₂ (s) + 2 H₂O (l) → Ba(OH)₂ (aq) + C₂H₂ (g) The enthalpy…

Q: what are the two ways by which an enthalpy of a reaction can be determined.

A: The change in the enthalpy of a chemical reaction is known as the enthalpy of a reaction ∆H. It is a…

Q: E B Where would the bicyclist have the highest potential energy? (choose one) v Where would the…

A: High elevation causes high potential energy.  Kinetic energy is due to motion so it's just opposite…

Q: The enthalpy increase of N; when heated between 300 and 1500 does not exceed 100 kl/mol.

A: Here we have to predict whether given statement is true and false.  The statement given is " The…

Q: calculate the reaction enthalpy of this reaction under standard conditions:2HNO2(g)+O2(g)→2HNO3(g)

A: The enthaply of the reaction is calculated as follows,

Q: What is the enthalpy of the reaction at 298 K, in kJ, for. 2 H2 (g) + 02 (g) 2 H20 (g)

A: ∆H for reaction is the difference of products of energy to the reactants of energy.

Q: Write the chemical equation for the standard molar enthalpy of formation of ammonium perchlorate,…

A: the equation is provided in the next step:

Q: In an experiment to determine the calorific value of a food, a sample of the food was burned in an…

A: Given that a current of 1.27 A was flowed through the calorimeter for 157 s. Heat capacity can be…

Q: Suppose the calorimeter used for this experiment had been made of a heat-conducting material (such…

A: Calorimeter is used to measure heat transfer . It is generally made with insulated materials.as it…

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E A D B Where would the…

A: Answer: This question is based on the conservation of energy according to which total energy ( which…

Q: follow, calculate the standard enthalpy change for this reaction.

A:

Q: Calculate the Enthalpy of Reaction 2CH3OH(I) + 302(g) → 2CO2(g) + 4H2O(1I)

A: ∆H°f (CO2(g) ) = -393kj/mole ∆H°f (H2O(l)) = -286kj/mole ∆H°f (CH3OH(l)) = -238.7kj/mole

Q: 2. Express the reaction enthalpy for the reaction: B + C →5E +z" 1 1 E +5F in terms of the reaction…

A:

Q: Calculate the energy change for a system undergoing an exothermic process in which 15.4 kJ of heat…

A: Given : Heat energy = 15.4 kJ Work done = 6.3 kJ

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: Introduction The reaction can be calculated by using the thermodynamics values of the species which…

Q: What is the electrostatic potential energy (in joules) between an electron and a proton that are…

A: The electrostatic potential energy between two charge is calculated by the coulomb’s law. The…

Q: Cu (s) + 2 Ag+ (aq) -> Cu2+ (aq) + 2 Ag (s)   Use the standard enthalpies of formation to…

A: The standard change in enthalpy of reaction can be calculted by using the standard enthalpy of…

Q: ne standard enthalpy of

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Q: Which of the following is a statement of the first law of thermodynamics? A) AE = Efinal - Einitial…

A: The first law of thermodynamics states that Energy can neither be created nor be destroyed as the…

Q: Calculate the enthalpy change for the thermite reaction: 2Al(s) +Fe2O3(s)→2FE(s) + A½O3(s), A¡H° =…

A: The given enthalpy is for the stochiometric moles of aluminum given in the reaction so for the given…

Q: What is the electrostatic potential energy between an electron and a proton that are separated by 62…

A: The electrostatic potential energy between an electron and a proton is calculated as,