spontaneity

I dont know how to solve these 2 problems. My issue is setting them up, I dont know how to set these problems up to get a solution for them. 1. Given info: 2 C6H6(l) + 15 O2(g) 12 CO2(g) + 6 H2O(l) G° = -6399 kJ C(s) + O2(g) CO2(g) G° = -394 kJ H2(g) + 1/2 O2(g) H2O(l) G° = -237 kJ Calculate G° for the following reaction. 6 C(s) + 3 H2(g) C6H6(l) 2. The value of G° for the following reaction is -5490. kJ. Use this value and data from Appendix 4 to calculate the standard free energy of formation for C4H10(g). 2 C4H10(g) + 13 O2(g) 8 CO2(g) + 10 H2O(l)

First Order Reaction

The following first order reaction is conducted in an inert liquid at 45 celsius: N2O5 N2O4 + 1/2 O2 THE RATE CONSTANT IS K=6.2*10 XY TO -4 SXY -1 AN 80.0g SAMPLE OF N2O5 IS DISSOLVED IN THE INERT LIQUID AND ALLOWED TO DECOMPOSE AT 45 CELSIUS. 1- HOW LONG WIL IT TAKE FOR THE QUANTITY OF N2O5 TO BE REDUCED TO 2.5g? 2- WHAT VOUME OF O2 (AT 1 ATM PRESSURE AND 25 CELSIUS) IS PRODUCED UP TO THIS POINT?

equilibrium

In the manufacture of sodium carbonate, NaHCO3(s) is decomposed by heating. 2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) Kp=0.23 at 100 celsius. 1-If a sample of NaHCO3(S) is brought a temperature of 100 celsius in a closed container, what will be the total gas pressure(in atm) at equilibrium? 2- A mixture of 1.00 mol each of NaHCO3(s) and NaCO3(s) is introduced into a 2.50-L flask in which Pco2=2.10 atm and PH20(water)=715 mmHg. When equilibrium is established (at 100 celsius), will the partial pressures of CO2(g) and H2O(g) be greater than or less than their initi... click for more

activation energy

At room temperature( 20 CELSIUS), milk turns sour in about 64 hours. In a refrigerator at 3 celsius, milk can be stored 3 times as long before it sours. At each temperature, the constant K: K= c/(souring time) where c is a constant. 1- estimate the activation energy of the reaction that causes the souring of milk 2- HOW LONG WILL IT TAKE MILK TO SOUR AT 40 CELSIUS?

Endothermic Reaction

THE ENDOTHERMIC REACTION A(g) + B(g) 2C(g) PROCEEDS TO AN EQUILIBRIUM CONDITION AT 200 CELSIUS. WHICH OF THE FOLLOWING STATEMENTS IS (ARE) TRUE? 1- If the mixture is tranfered to a reaction vessel of twice the volume, the amounts of reactants and products will remain unchanged 2- Addition of an appropriate catalyst will result in a greater amount of C(g) 3- Lowering the reaction temperature to 100 celsius will result in the formation of a greater amount of C(g) 4- Addition of an inret gas at constant volume wil have little or no effect on equilibrium