Answer:
Explanation:
Inertia is the reluctancy of a moving body to come to rest or change it direction or a body at rest to start moving
The enthalpy change of the reaction is <u>-1347.8 kJ.</u>
<h3>What is the enthalpy change, ΔH, of the reaction?</h3>
The enthalpy change, ΔH, of the reaction is calculated from Hess's law of constant heat summation as follows:
Hess's law states that the enthalpy change of a reaction is the sum of the enthalpies of the intermediate reaction.
Given the reactions below and their enthalpy values;
1. X (s) + 12 O₂ (g)⟶ XO (s) ΔH₁ = −850.5 kJ
2. XCO₃ (s) ⟶ XO (s) + CO₂ (g) ΔH₂ = +497.3 kJ
The enthalpy change, ΔH, of the reaction whose equation is given below, will be:
X (s) + 12 O₂ (g) + CO₂ (g) ⟶ XCO₃ (s)
ΔH = ΔH₁ - ΔH₂
ΔH = − 850.5 kJ - (+497.3 kJ)
ΔH = -1347.8 kJ
Learn more about enthalpy change at: brainly.com/question/14047927
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Answer:
3
there are 3 nitogen atoms and two oxygen atoms on (3NO2) , also 2 hydrogen atoms and i oxygen atom on (H2O) therefore 2+1=3 oxygen atoms
<span>These elements are red. They are typically gaseous at normal temperatures: some examples can include oxygen, hydrogen, and the noble gases (neon, argon, krypton). These elements all use the concept of STP (standard temperature and pressure) as their baseline: 1 atmosphere of pressure and 0 degrees Celsius.</span>
Answer:
Final T = 298.7K
Explanation:
In this problem, the heat given for the iron is equal to the heat that water absorbs. Using the equation:
Q = C*m*ΔT
<em>Where Q is heat given = 270000J</em>
<em>C is specific heat of substance = 0.385J/gK</em>
<em>m is mass of iron = 1000g</em>
<em>ΔT is change in temperature = Initial temperature - Final temperature.</em>
<em />
270000J = 0.385J/gK*1000g*(1000K-Final temperature)
701.3J/K = 1000K - Final T
<h3>Final T = 298.7K</h3>