2. A chemist measures the energy change AH during the following reaction: 2 NH3(g) N2(g)+3H2(g) AH = 160. kJ Use the information to answer the following questions. This reaction is... Suppose 72.0 g of NH3 react. Will any heat be released or absorbed? endothermic. exothermic. Yes, absorbed. Yes, released. No. 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. ☐ kJ Be sure your answer has the correct number of significant digits.