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1. How do you use Gibb’s free energy value to calculate Kc?

you need to use this equation .. ΔG = - R * T * ln(Keq)

2 Answers · Science & Mathematics · 31/07/2019

2. The reaction A(g)⇌B(g) has an equilibrium constant of Kp=1.3. What can you conclude about the sign of ΔG∘rxn for the reaction? ?

ΔG°rxn = -RT ln(Kp) = -RT ln(1.3) = -0.262RT < 0 for R > 0 and T > 0 The answer: a) ΔG°rxn is negative

1 Answers · Science & Mathematics · 04/12/2019

3. What is the value of for this aqueous reaction at 298 K? A+B↽−−⇀C+DΔ°=16.83 kJ/mol?

... ln Keq Convert Δ° to J/mol and use R = 8.314 J/mol K. Then, 1.683X10^4 J/mol...

1 Answers · Science & Mathematics · 17/07/2019

4. A balloon is floating around outside your window. The temperature outside is 27 ∘C and the air pressure is 0.800 atm .?

... P = pressure = 0.800 atm n = moles = 3.60 V = volume = ? R = gas constant = 0.0821 Latm/Kmol Using the ideal gas law: ...

2 Answers · Science & Mathematics · 04/07/2019

5. How to determine ideal / non ideal behavior of gas?

...the volume of a known mass of the vapor at 25 C and 1 atm and calculate R R = PV/nT if your calculated R ...

1 Answers · Science & Mathematics · 05/02/2020

6. Chemistry question?

...can only be expressed to three significant digits Your choice of R will determine the units of P R = 0.08206 Latm/molK...

2 Answers · Science & Mathematics · 01/08/2019

7. The density of a gas is 1.48 g/L at a temperature of 24 ∘C and a pressure of 0.784 atm . Calculate the molar mass of the gas.?

... = 297 K Pressure, P = 0.784 atm Gas constant, R = 0.08206 L•atm/(mol•K) Molar mass, M = ? g/mol ...

2 Answers · Science & Mathematics · 07/04/2020

8. Chemistry Kinetics question?

... / dT you use the coefficients to convert between rate w.r.t B and rate w.r.t A for example .. rate w.r.t B = 3/2 * rate...

1 Answers · Science & Mathematics · 30/03/2020

9. How many seconds does it take for the NO2 concentration to drop to 1.0×10^−3 M?

...use this information to calculate the activation energy of the reaction: ln (k2/k1) = Ea/R (1/T1- 1/T1) ln 13/0.55 = Ea/8.314 J/molK...

1 Answers · Science & Mathematics · 16/04/2020

10. What is the pressure of 2.78 grams of fluorine gas in an 875mL container at 26.4 Celsius?

... / 0.875L / 38.0 g/mol P = 2.06 atm Your choice of R will determine the units of P R = 0.08206 Latm/molK...

2 Answers · Science & Mathematics · 26/07/2019