Answer:
Explanation:
maleic acid ⇒ fumaric acid
ΔHreaction = ΔHproduct - ΔHreactant
ΔHproduct = -1336.0 kJ mol⁻¹
ΔHreactant = - 1359.2 kJ mol⁻¹.
ΔHreaction = -1336.0 kJ mol⁻¹ - ( - 1359.2 kJ mol⁻¹.)
= 1359.2 kJ mol⁻¹ -1336.0 kJ mol⁻¹
= 23.2 kJ mol⁻¹ .
Enthalpy of isomerization from maleic to fumaric acid is 23.2 kJ per mol.
Answer:
advisory
Explanation:
advisory is issued in order to help those who are unaware
β⁻ emission is an emission of an electron by converting a neutron
to a proton. Hence, in β⁻<span> decay, the atomic
number of daughter atom increases by 1 than the parent atom and
mass number is not changed in the formed daughter nucleus.</span>
Hence, formed daughter atom should have 89 + 1 = 90 as atomic number. Hence, the daughter atom should be Th (<span>Thorium)</span>
<span>The equation is</span>
₈₉²²⁸Ac → ₉₀²²⁸Th + ₋₁⁰β + energy<span>
</span>