Measurements show that the energy of a mixture of gaseous reactants decreases by 274. 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 -89. 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? kJ O exothermic O endothermic x10 X

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Measurements show that the energy of a mixture of gaseous reactants decreases by 274. 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 -89. 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
X
?
BEEN
000
Ar
图
Transcribed Image Text:Measurements show that the energy of a mixture of gaseous reactants decreases by 274. 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 -89. 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 X ? BEEN 000 Ar 图
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