It is a homogenous mixture because when iron and rust mix it’s homogenous.
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Answer:
boron is a non-metal and aluminium is metal. Hence, boron is a bad conductor of electricity whereas aluminium is a good conductor of electricity. Also, aluminium is more reactive as compared to boron.
Explanation:
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Answer:
ΔS = 4.1 J/K
Explanation:
Enthalpy (H) is defined as the amount of energy released or absorbed during a chemical reaction.
Entropy (S) defines the degree of randomness or disorder in a system.
The relationship between both parameters is given as;
ΔS = ΔH / T
ΔH = 26.7 KJ/mol for 1 mol of diethyl ether
number of moles = mass / molar mass
number of moles = 3.4 / 72 = 0.04722
ΔH = 26700 * 0.04722 = 1260.77 J
T = 34.6 + 273 = 307.6 (upon converting to kelvin temperature)
ΔS = 1260.77 / 307.6
ΔS = 4.1 J/K