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Contact [7]
3 years ago
11

You decided to change your bedroom. You move your bed 1.5 meters across the room and the force you used to move the bed was 20 n

ewtons. It takes you 5 minutes. How much power did you use?
Chemistry
1 answer:
lorasvet [3.4K]3 years ago
6 0
Human Strength power
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The standard enthalpy of formation of BrCl(g) is 14.7 kJmol-1 . The standard enthalpies for the atomization of Br2(l) and Cl2(g)
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Explanation:

Equation of the reaction:

Br2(l) + Cl2(g) --> 2BrCl(g)

The enthalpy change for this reaction will be equal to twice the standard enthalpy change of formation for bromine monochloride, BrCl.

The standard enthalpy change of formation for a compound,

ΔH°f, is the change in enthalpy when one mole of that compound is formed from its constituent elements in their standard state at a pressure of 1 atm.

This means that the standard enthalpy change of formation will correspond to the change in enthalpy associated with this reaction

1/2Br2(g) + 1/2Cl2(g) → BrCl(g)

Here, ΔH°rxn = ΔH°f

This means that the enthalpy change for this reaction will be twice the value of ΔH°f = 2 moles BrCl

Using Hess' law,

ΔH°f = total energy of reactant - total energy of product

= (1/2 * (+112) + 1/2 * (+121)) - 14.7

= 101.8 kJ/mol

ΔH°rxn = 101.8 kJ/mol.

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3 years ago
Wassup everyone?????
ioda

Answer:

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Explanation:

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Nitrogen gas is a diatomic molecule. what is the mass of one mole of nitrogen gas?
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Atomic mass of N from periodic table is 14 amu so atomic mass of N₂ will be 2 * 14 = 28 amu 

This means that every mole of N₂ has mass equal to 28 g 
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Answer:

Identifying a need

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Correct answer for APEX quiz.

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Ethanol and water have different boiling points, and when mixed they form a homogeneous mixture. By which process could the mixt
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