$1$a$)$

Which statement is true of both potential energy diagrams and kinetic energy diagrams? $($there are no specific diagrams, the question asks which is true about both potential energy diagrams and kinetic energy diagrams in a general sense$)$

a$)$Both diagrams show enthalpy difference between reactants and products.

b$)$Both diagrams represent the energy in the particle called the activated complex.

c$)$Both diagrams represent the proportion of particles in a system at constant temperature that can react.

d$)$Both diagrams represent the minimum amount of energy required for a reaction to occur.

e$)$none of the above statements are true.

$1$b$)$

If the molar enthalpy change of the formation of sodium chlorate is $53\mathrm{.}0$kJ$/$mol$,$then the quantity of energy used for $3\mathrm{.}00$mol of sodium chlorate is

a$)159$kJ

b$)17\mathrm{.}7$kJ

c$)56\mathrm{.}0$kJ

d$)0\mathrm{.}0566$kJ

e$)$none of the above

$1$c$)$

In the reaction $2$N$2($g$)+$O$2($g$)-->2$NO$2($g$),$if the concentration of NO$2$changes from $0\mathrm{.}45$mol$/$L to $1\mathrm{.}00$mol$/$L in $2$minutes$,$ what is the overall rate of production of nitrogen dioxide in the system?

a$)0\mathrm{.}137$mol$/($L$$min$)$NO$2$produced

b$)0\mathrm{.}275$mol$/($L$$min$)$NO$2$produced

c$)3\mathrm{.}64$mol$/($L$$min$)$NO$2$produced

d$)12\mathrm{.}6$mol$/($L$$min$)$NO$2$produced

e$)0\mathrm{.}333$mol$/($L$$min$)$NO$2$produced