Calculating delta G given the equilibrium constant and Kelvins.

The value of the equilibrium constant for a particular reaction is 2.34 x 10^3 at 298k. Calculate the change in G for this reaction.

entropy

If "change in" G > 0, then a. K=0 b. K>0 c. K<0 d. K>1 e. K<1

Calculating delta G given delta H and delta S.

Ammonia is synthesized from nitrogen and hydrogen gases at a temperature of 475 degrees Celsius. N2(g)+3H2(g) --->2NH3(g) If delta H = -92.2kJ and delta S= -0.1987kJ/K, what is delta G for the reaction? Provide the answer in kJ.

True and false questions about entropy and its relationships with states of matter and temperatures.

Which of these statements is false? a. For a given material, a gas would have a greater entropy than the solid. b. For a given material, a liquid would have a greater entropy than the gas. c. At 0 K, an ordered pure crystalline solid has an entropy of zero. d. For a given material, the liquid has a greater entropy than the solid. e. Increasing the temperature of a substance increases its entropy.

entropy

Which of the following statement is false? a. "change in" H < 0 for exothermic reactions b. Generally, nature tends to move from more ordered to more random states c. "change in" S > 0 for systems that become more disorderly d. Reactions are spontaneous when "change in" G < 0 e. Reactions are spontaneous when "change in" H < 0