Consider the following reaction and its equilibrium constant: CH4(g)+ NH3(g)↔HCN(g)+ 3 H2(g)Kc= 15 A reaction mixture contains 0.33M CH4, 0.022M NH3,0.55M HCN and 1.0M H2. Which of the following statements is true concerning this system?
a. The reaction will shift in the direction of products.
b. Kcwill decrease.
c. The reaction quotient, Qc, will decrease.
d. The system is at equilibrium

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the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

level 4 to level 2 : ))