Measurements show that the energy of a mixture of gaseous reactants increases by 397. kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that - 169. kJ of work is done on the mixture during the reaction. Calculate the change in enthalpy of the gas mixture during the reaction. Round your answer to 3 significant digits. Is the reaction exothermic or endothermic? O exothermic O endothermic 0 x10 X

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Measurements show that the energy of a mixture of gaseous reactants increases by 397 kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change, it is determined that -169 kJ of work is done on the mixture during the reaction.

**Calculate the change in enthalpy of the gas mixture during the reaction. Round your answer to 3 significant digits.**

□ kJ

**Is the reaction exothermic or endothermic?**

- ○ exothermic
- ○ endothermic

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Transcribed Image Text:Measurements show that the energy of a mixture of gaseous reactants increases by 397 kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change, it is determined that -169 kJ of work is done on the mixture during the reaction. **Calculate the change in enthalpy of the gas mixture during the reaction. Round your answer to 3 significant digits.** □ kJ **Is the reaction exothermic or endothermic?** - ○ exothermic - ○ endothermic There is a diagram depicted as an interactive or form-based element with boxes for input and selection, including options for resetting or confirming actions.
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