Multiple Choice
Hydrogen iodide decomposes according to the equation 2HI(g)
H2(g) + I2(g) , for which Kc = 0.0156 at 400ºC. 0.550 mol HI was injected into a 2.00 L reaction vessel at 400ºC. Calculate the concentration of H2 at equilibrium.
A) 0.275 M
B) 0.138 M
C) 0.0275 M
D) 0.0550 M
E) 0.220 M
Correct Answer:

Verified
Correct Answer:
Verified
Q58: Calcium carbonate decomposes at high temperatures to
Q59: The reaction A(g)+ 2B(g) <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3244/.jpg" alt="The
Q60: Consider the following equilibrium,<br>4NH<sub>3</sub>(g)+ 3O<sub>2</sub>(g) <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3244/.jpg"
Q61: Consider the chemical reaction 2NH<sub>3</sub>(g) <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3244/.jpg"
Q62: K<sub>c</sub> for the reaction CO<sub>2</sub>(g)+ H<sub>2</sub>(g) <img
Q64: Consider this reaction at equilibrium at a
Q65: When the substances in the equation
Q66: The equilibrium constant expression for the reaction<br>CuO(s)+
Q67: For the following reaction at equilibrium,
Q68: For the reaction at equilibrium 2SO<sub>3</sub>