The rectangle shown is rotated about line k.
What is the approximate base area of the resulting figure?
Area of a circle: A = ir?
O 31 sq. in.
50 sq. in.
O 79 sq. in.
O 314 sq. in.
D
5 in.
5 in.

ljjjljlj kjlk,ljym jlyu; jm; l mumytj

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the answer to your question is c