Calculate the value of the equilibrium constant, kc, for the reaction below, if 0.208 moles of sulfur dioxide gas, 0.208 moles of oxygen gas and 0.425 moles of sulfur trioxide gas are present in a 1.50-liter reaction vessel at equilibrium.

2so2(g) +o2 (g) < --> 2so3 (g)

a. kc=3.32 x 10^-2
b. kc=2.01 x 10^1 (i know for a fact this one is wrong.)
c. kc=2.98 x 10^1
d. kc=1.47 x 10^1

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definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.