Calculate the entropy of HBr at 298 K and 1.00 bar, given that the bond length is 1.41 Å and the masses of ¹H and 79Br are 1.008 amu and 78.92 amu, respectively. The vibrational wavenumber is 2649 cm-1. Step 1 of 7 Provide the equation needed to calculate the translational contribution to the total entropy. (Use the following as necessary: h, kg, m to represent the mass, P, 7t, and T.) (2017)(2) +27 (2) (2μmkBT) Strans = R In (2æmkâT)¾ kgT_³ h³ P h³ P Step 2 of 7 Substitute numerical values into the equation from Step 1 to obtain a numerical calculation for the translational entropy contribution. Strans = 163.61✔ 163.484901080763 J-K-1-mol-1 Step 3 of 7 Provide the equation needed to calculate the rotational contribution to the total entropy. (Use the following as necessary: h, I, kB, π, σ, and T.) Srot = R In 8n²IkgT oh² +R 8² IkBT oh² ✓ Step 4 of 7 Substitute numerical values into the equation from Step 3 to obtain a numerical calculation for the rotational entropy contribution. Srot = 31 XJ-K-1-mol-1

Calculate the entropy of HBr at 298 K and 1.00 bar, given that the bond length is 1.41 Å and the masses of ¹H and 79Br are 1.008 amu and 78.92 amu, respectively. The vibrational wavenumber is 2649 cm-1. Step 1 of 7 Provide the equation needed to calculate the translational contribution to the total entropy. (Use the following as necessary: h, kg, m to represent the mass, P, 7t, and T.) (2017)(2) +27 (2) (2μmkBT) Strans = R In (2æmkâT)¾ kgT_³ h³ P h³ P Step 2 of 7 Substitute numerical values into the equation from Step 1 to obtain a numerical calculation for the translational entropy contribution. Strans = 163.61✔ 163.484901080763 J-K-1-mol-1 Step 3 of 7 Provide the equation needed to calculate the rotational contribution to the total entropy. (Use the following as necessary: h, I, kB, π, σ, and T.) Srot = R In 8n²IkgT oh² +R 8² IkBT oh² ✓ Step 4 of 7 Substitute numerical values into the equation from Step 3 to obtain a numerical calculation for the rotational entropy contribution. Srot = 31 XJ-K-1-mol-1

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Calculate the change in entropy when 25 kJ of energy is transferred reversibly and isothermally as hear to a large block of iron at (a) 0 °C (b) 100 °C
Use the information give below to calculate the value of the standard molar entropy, So m of a solid K2O ( in J/mole x K) 2 K2O (s) ---> 4 K (s) + O2 (g) DeltaSo m = +275 J/K So m [K(s)] = +65 J/Mole x K Som [O2 (g)] = + 205 j/mole x k
Please asap
Their relationship is ALWAYS spontaneous -ΔΗ +ΔΗ +AS -AS +AG -AG
Calculate the change in the entropies of the system and the surroundings, and the total change in entropy, when the volume of a sample of argon gas of mass 31.5 g at 298 K and 1.50 bar increases from 1.20 L to 4.60 L in an adiabatic reversible expansion.
Derive an expression showing how entropy can be related to thermodynamic probability.
From the following data, determine A,HO for diborane, B2H, (9) at 298K. (1) B,H,(g) +3 0,(g)→B,0,(s) +3 H,0(g) (2) 2 B(s) +0,(g) B,0,(s) (3) H,(g) +0,(g) -→ H,O(g) A,H°=-2036 kJ mol- A,H°=-1274 kJ mol A,H°=-241.8 kJ mol-
At 298K, the enthalpy of denaturation (unfolding) of hen egg whites lysozyme is +112.6 kJ/mol and the change in the constant pressure molar heat capacity resulting from the denaturation fo hte protein is +12.1 kJ/molK. Calculate the entropy of denaturation of hen eggs white lysoenyme at 360K (the melting or folding temperature of the enzyme) in units of kJ/molK
6.
) Given the following data on Phosphorus and its allotropeso ∆Hf kJ mol-1 ∆Gfo kJmol-1 So J mol-1 K-1 White phosphorus, P(s, white) 0 0 0 Gaseous Phosphorus, P(g) 315 278 163 Gaseous Phosphorus, P4(g) 59 24 280 b) For the transformation P(g) -> ¼ P4(g), is work done by the system or on the system? How much work is involved? Explainwith solutions. c) Calculate the ∆E in kJ for the process P(g)  ¼ P4(g) in (b). d) Calculate the sublimation temperature for white Phosphorus (in oC) assuming constant values of enthalpy and entropyover the temperature range involved.
7. The constant-volume molar heat capacity of a solid may be approximated by 3 12Tª Gy= 5 eD if T << ep. For Al, p = 398 K. What is the entropy change of a 5.0g mass of Al when it is heated at constant volume from 4 K to 176 K?
Calculate AS (for the system) when the state of 2.00 mol diatomic perfect gas molecules, for which Cp,m = (7/2)R, is changed from 25 C and 1.50 atm to 135 C and 7.00 atm.