For the chemical reaction H2 + CO2 → H2O + CO, the energy contained in the reactants is 352 kJ, and the energy contained in the products is 394 kJ, assuming 1 mol of each substance is present. Which of the following statements is true?

A. 42 kJ is released, and the reaction is exothermic.

B. 42 kJ is released, and the reaction is endothermic.

C. 42 kJ is absorbed, and the reaction is exothermic.

D. 42 kJ is absorbed, and the reaction is endothermic.

Question

For the chemical reaction H2 + CO2 → H2O + CO, the energy contained in the reactants is 352 kJ, and the energy contained in the products is 394 kJ, assuming 1 mol of each substance is present. Which of the following statements is true?

A. 42 kJ is released, and the reaction is exothermic.	

B. 42 kJ is released, and the reaction is endothermic.	

C. 42 kJ is absorbed, and the reaction is exothermic.	

D. 42 kJ is absorbed, and the reaction is endothermic.

anonymous · Answer

without even knowing the things around this matter one can realize that final heat is greater than initial hence it must have given the heat out which makes it an exothermic reaction, leaving us with the two options A and B. A is sying released and B is saying absorbed. the answer is clear.

anonymous · Answer

since the products contain more energy, that energy has to come from somewhere, thus it is absorbed from the environment.
those reactions that absorb energy is called endothermic so answer is D

anonymous · Answer

somebody kick me in the nuts! damn it , i'm getting rusted. 
kaleshwarchand  is right.  everybody, don't listen to me anymore. sorry.

anonymous · Answer

42 kJ is released, and the reaction is exothermic

anonymous · Answer

Is the correct answer

jtfan2000 · Answer

surprisebreeze - no, the answer absorbed, endothermic