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1. ### 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

2. ### 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

3. ### If you have 3 moles of a gas at a pressure of 2.5 atm and a volume of 8 liters, what is the temperature?

... n = 3 moles P = 2.5 atm V = 8 L Use R is L-atm/deg-mol (This is 0.08206) and your answer...

1 Answers · Science & Mathematics · 03/05/2019

4. ### Use an Arrhenius plot to determine the activation barrier and frequency factor for the reaction.?

...will correspond to ln(A), and the slope of the line will be equal to -Ea/R. From the linear regression line equation at the top of the plot, the y-intercept...

1 Answers · Science & Mathematics · 21/02/2019

5. ### Consider this reaction data. A⟶products T (K) k (s–1) 275 0.372 525 0.629 What is the activation energy of this reaction? y= x=?

...the form of the Arrhenius equation that is: ln (k2/k1) = (-Ea/R) (1/T2 - 1/T1) ln(0.629 / 0.372) = (Ea/8.314 J/...

1 Answers · Science & Mathematics · 08/02/2019

6. ### 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

7. ### Why is the ionisation energy needed to remove the 3rd electron from Aluminium much lower than the energy required to remove the 4th?

...effective nuclear charge of the nucleus and q2 is the charge on the electron, and r is the distance between them. Decreasing r, increases...

1 Answers · Science & Mathematics · 10/02/2019

8. ### 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

9. ### The rate constant of a chemical reaction increased from 0.100 s−1 to 2.60 s−1 upon raising the temperature from 25.0 ∘C to 43.0 ∘C .?

... form of the Arrhenius equation: ln(k₂/k₁) = (Ea/R) × [(1/T₁) - (1/T₂)] Ea = activation energy R = 0.008314...

1 Answers · Science & Mathematics · 24/02/2019

10. ### A 3.00-L flask is filled with gaseous ammonia, NH3. The gas pressure measured at 26.0 ∘C is 1.87 bar...?

... Rather than convert the pressure units, simply use the value of R which matches the given pressure unit. R = 8.314 LkPa...

2 Answers · Science & Mathematics · 26/01/2019