A 100 Mol Sample of a Was Placed in a 2

Multiple Choice

A 1.00 mol sample of A was placed in a 2.00 L reactor and heated to 342 ${ } ^ { \circ } \mathrm { C }$ until the system reached equilibrium. The contents of the reactor then contained 0.0488 mol of C. What is K for the reaction 2A(g) $f$ 2B(g) +C(g) at the same temperature?

A) 1.45 $\times 10 ^ { - 3 }$
B) 4.37 $\times 10 ^ { - 4 }$
C) 2.64 $\times 10 ^ { - 4 }$
D) 2.85 $\times 10 ^ { - 4 }$
E) 3.59 $\times 10 ^ { - 3 }$