What is an elementary reaction? 3.5. given the reaction 2no, + 1/202 = 1,0s, what is the relationship between the rates of formation of 1,0, and disappearance of the two reactants? 3.6. we have a process that reacts 67% ch, in o, at 10 atm to form syngas (ahr =-8.5 kcal/mol-ch). (a) estimate the adiabatic reactor temperature at completion if we produce 100% syngas with a feed temperature of 400°c. assume co=7/2r=7 cal/mol k). (b) estimate the adiabatic reactor temperature if we suddenly begin producing 100% total combustion products (ahr =192 kcal/mol). (c) what must we be concerned with regarding reactor construction materials and pressure relief capabilities to design for this possibility?

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

the answer is c i believe

they are made of gases.

they have a spherical shape.

they make energy through fusion.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.