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A chemist measures the energy change $H$ during the following reaction:

$2N{O}_2(g)N_2{O}_4(g),H=-55\mathrm{.}3kJ$

Use the information to answer the following questions.

$\backslash$table$[[$This reaction is$...,\backslash$table$[[$endothermic$.],[$exothermic$.]]],[\backslash$table$[[$Suppose $30\mathrm{.}2g$ of $N{O}_2$ react.$],[$Will any heat be released or absorbed$?]],\backslash$table$[[$Yes$,$ absorbed$.],[$Yes$,$ released.$],[$No$.]]],[\backslash$table$[[$If you said heat will be released or absorbed in$],[$the second part of this question, calculate how$],[$much heat will be released or absorbed$.]],-14\mathrm{.}7kJ$