Chemistry final help ya'll

the question is in the picture

-20kJ/mol minus 66kj/mo

Explanation:

2NO2 = N2O4

Delta H 2NO2 = +66 kj/mol

Delta H N2O4 = -20kJ/mol

Change in entropy = Change in heat of a system

Delta H = Hfinal minus Hinital

So in our case it would be

-20kJ/mol minus 66kj/mol

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne