T₂H(T₂) = H(T) + [²C,dTT₁T₂A‚H°(T,) = A‚H°(T; ) + √„ª ACT(2C.6)Kirchhoff's law(2C.7a)PT₁- Σ vcom - Σ vcoAC = Σ VC-p,mProductsReactantsp,m(2C.7b)14.14.114.214.3Equation 2C.6 (prescribed textbook) can be written for both the reactants and the products.The difference between the resulting expressions is the Kirchhoff's law in 2C.7a(prescribed textbook).Write the reaction equation for the formation of cyclohexane, C6H12(e).Use equation 2C.7b (prescribed textbook) and the data in Resource section to calculate thedifference of the molar heat capacities. [5 sig. fig.]Use Kirchhoff's law to calculate the standard enthalpy of formation of cyclohexane at 400 Kfrom the data in Resource section. [5 sig. fig.]

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Answered: T₂ H(T₂) = H(T) + [²C,dT T₁ T₂ A‚H°(T,)…

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...

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1). The susceptibility of FeCl₂ obeys the Curie-Weiss law over the temperature range 90 K to room temperature (293K), with 0 =48K. Its molecular susceptibility at room temperature is 1.475 1022 emu/Oe g mol). (Use: N= 6.022 x 1023 atoms/g-mol, KB= 1.38 × 10-¹6 erg/K) (a) Show that the effective magnetic moment is 5.4 µB. (b) Show that the value of J is 2.25. (c) At an applied field of 8000 Oe, what is the value of the molecular field at 0 °C ?
P2C.4 From the following data, determine A,H° for diborane, B,H,(g), at 298 K: (1) B,H,(g) + 30,(g) → B,O,(s) +3 H,O(g) A̟H° =-1941kJ mol -> %3D (2) 2B(s) + 를0,(g) → B,O, (s) A̟H® =-2368 kJ mol (3) H,(g)+±O,(g) → H,O(g) A,H° =-241.8kJ mol %3D
5A.3(a) Suppose that na = 0.10ng and a small change in composition results in HA changing by dµ =+12Jmol-!, by how much will µz change?
AC 1.4 (b) (1) Write balanced chemical equations as well as word equations underneath, showing the reactions of the oxides of Na and Mg with hydrochloric acid (HCI). (ii) Write balanced chemical equations as well as word equations underneath, showing the reactions of all the oxides of P and S with sodium hydroxide (NaOH). AC 1.5 Describe the trend in acid-base behaviour of the Period 3 oxides based on the above reactions, moving from left to right across the Period.
(d) 0.56 M (NH4)2SO4 lons: NH3* NH4 SO,2- SO3 O 0,2- [cation*] = i [anion] = M ΣΣ
for subparts a, c, d, e, f
5) Starting from the expression Cp – G, = T (P/ər), (V/ar). ' use the appropriate relations between partial derivatives to show that T(V/ar), Cp – Cy =
[(2.26 x 106) = 44.343] + 130.14 VG ΑΣΦΑΦ Submit hel CO micr HTC ΚΑΛΗΣΠΕΡ Εγκατ ACTI Birtugus Answer ?
(a) NBS, hv 1A Br (b) Mg/Et,0 -CH3 1B > 10 NBS, 1 eq. (c) - 1D + 1E + 1F heat Brzieроxide 1G Br2/H20 1H H,SO,, heat 11 (d) но
Q1: In argon gas, the interaction between two Ar atoms, separated by a distance r, can be very well described by the Lennard-Jones (LJ) potential energy: o12 V (r) = 4€ r12 76 The parameters o and e determine the shape and the strength of the potential. For argon, o = 0.34 nm and e = 120kg K (where kg is the Boltzmann constant). (a) Is the LJ interaction given above attractive or repulsive? What happens if two Ar atoms are brought very close to each other? What if they are far from each other? (b) Based on your answer in the previous part, describe the general motion of two Ar atoms brought close to each other and allowed to move from rest. (c) Does the LJ potential allow for equilibrium separation between two Ar atoms? If so, is it stable or unstable separation? (d) Based on your answers in the previous parts, determine the "spring constant" (in N/m) related to the LJ potential.
Cp− ̄Cv=T ̄V β^2/κ reduces to ̄CP− ̄CV=R for an ideal gas.
Since we will be dealing with partial derivatives later in the semester, this is a good opportunity to review this topic (see appendix C). Then evaluate the following partial derivatives (a) PV = nRT; (∂ P/∂V)T (b) r = (x2 + y2 + z 2 )1/2; (∂ r/∂y)x,z

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