Answer:
286 J/K
Explanation:
The molar Gibbs free energy for the vaporization (ΔGvap) is:
ΔGvap = ΔHvap - T.ΔSvap
where,
ΔHvap: molar enthalpy of vaporization
T: absolute temperature
ΔSvap: molar entropy of the vaporization
When T = Tb = 64.7 °C = 337.9 K, the reaction is at equilibrium and ΔGvap = 0.
ΔHvap - Tb . ΔSvap = 0
ΔSvap = ΔHvap/Tb = (71.8 × 10³ J/K.mol)/ 337.9 K = 212 J/K.mol
When 1.35 mol of methanol vaporizes, the change in the entropy is:
The permanent magnet in the loudspeaker is fixed close to a mobile electromagnet coil. The electromagnet is attached to a flexible material called cone (). Passing an electric current in the electromagnet causes it to vibrate due to the interaction with the permanent magnet.Uh hope this helped.
Answer:
NaCl
Explanation:
none of them. Salt presents NaCl
Answer:
Potassium is an s block element as the electrons of potassium are in the outermost s orbital in an electron shell. EXPLANATION: Alkali metals are known to be group 1 metals placed in s block.
Answer:
Under the seatbelt you will still move from side to side because your body does not remain at rest while you are in a moving car, but since the seat belt is constantly at rest, it will remain still. ... The belt applies an opposing force on the person's weight.
Explanation:
hope it helps