Answer:
The first one would describe it best
Explanation:
The second option sounds like a single displacement reaction
The third is a decomposition reaction
ANd the first is a combination reaction
When the entropy change of vaporization
= enthalpy of vaporization/boiling point temperature
when we have the enthalpy of vaporization = 38560 J/mol
and the boiling point temperature in Kelvin = 78.3 + 273 = 351.3 K
by substitution:
∴the entropy change of vaporization = 38560J/mol/351.3K
= 109.76 J/K/mol
and when the liquid has lesser entropy than the gas and we here convert from
gas to liquid so, the change in entropy = -109.76 J/K/mol
now, we need the moles of C2H5OH = mass/molar mass when the molar
mass of C2H5OH = 46 g/mol and mass = 42.2 g
∴ moles of C2H5OH = 42.2 g / 46 g/mol = 0.92 moles
when 1 mol of C2H5OH turns in liquid entropy change →-109.76 J/K/mol
∴ 0.92 mol of C2H5OH → X
∴ X entropy change when 0.92 mol = -109.76 *0.92 mol / 1 mol
= 84.64 J/K
Answer:
Solid, Liquid, Gas and, Plasma
Explanation:
A solid has a definite shape and volume. A liquid has a definite volume but takes the shape of its container. A gas lacks either a defined shape or volume. Plasma is similar to a gas in that its particles are very far apart, but gas is electrically neutral and plasma has a charge.
Lithium fluoride is the compound name
Answer:
Therefore, the oxidation state of sulphur atoms in Na2S2O3 is −2 and +6.
