The smaller the atomic radius in an element, the more ionization energy it will have. So when you go across the periodic table, the IE will decrease.
Answer : The correct option is, (b) +115 J/mol.K
Explanation :
Formula used :
where,
= change in entropy
= change in enthalpy of vaporization = 40.5 kJ/mol
= boiling point temperature = 352 K
Now put all the given values in the above formula, we get:
Therefore, the standard entropy of vaporization of ethanol at its boiling point is +115 J/mol.K
<span>The </span>reaction<span> between </span>baking soda<span> and </span>vinegar<span> is used in chemical volcanoes</span>
Just multiply 9.5 by Avogadro's number. You get 5.72 x 10^24 atoms.
