14)ASAP PLZ 14. Arrange the following in increasing order with respectto parameter given in parentheses (any three) :বন্ধনীত দিয়া কাৰক সাপেক্ষে তলত দিয়াবোৰ ঊর্ধ্বক্ৰমত সজোৱা (যি কোনো তিনিটা) :(a) B, C, N, O (first ionization enthalpy/প্রথম আয়নীকৰণ এস্থালপি)(b) Cr2+, Mn2+, Co2+, Ni 2 + (magnetic moment/চুম্বকীয় ভ্রামক) (c) 2p, 3d, 4s, 5f (azimuthal quantum number/ এজিমুলেকোৱাণ্টাম সংখ্যা)(d) C2H6, C2H4, C2H2, C6H6 (bond length between twocarbon atoms/দুটা কাৰ্বন পৰমাণুৰ মাজৰ বান্ধনি দৈৰ্ঘ্য)

First ionisation energy order can be determined based on electronic configuration of atoms.

14. Arrange the following in increasing order with respect to parameter given in parentheses (any three) : বন্ধনীত দিয়া কাৰক সাপেক্ষে তলত দিয়াবোৰ ঊর্ধ্বক্রমত সজোৱা (যি কোনো তিনিটা) : (a) B, C, N, O (first ionization enthalpy/প্রথম আয়নীকৰণ এম্বালপি) (b) Cr2+, Mn 21, Co2+, Ni 2 + (magnetic moment/চুম্বকীয় ভ্রামক)

14. Arrange the following in increasing order with respect to parameter given in parentheses (any three) : বন্ধনীত দিয়া কাৰক সাপেক্ষে তলত দিয়াবোৰ ঊর্ধ্বক্রমত সজোৱা (যি কোনো তিনিটা) : (a) B, C, N, O (first ionization enthalpy/প্রথম আয়নীকৰণ এম্বালপি) (b) Cr2+, Mn 21, Co2+, Ni 2 + (magnetic moment/চুম্বকীয় ভ্রামক)

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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Calculate the standard enthalpy change (in kJ/mol) for the reaction 2C3H18(1) + 2102(g) – 8CO(g) + 8CO2(g) + 18H20(1). Given that: 2C3H18(1) + 2502(9) → 16CO2(g) + 18H20(1) AH° = -11,020 kJ/mol 2Co(g) + O2(g) → 2CO2(g) AH° = -566.0 kJ/mol Answer in 4 significant figures. Exclude the unit/s
Q.29. Determine, at 298 K, AH, the standard enthalpy of the reaction (1) between dinitrogen tetraoxide and hydrazine: (1) N204 (g) + 2 N2H4 (1) → 3 N2 (g) + 4 H20 (g) Knowing the standard reaction enthalpies, at 298 K, of the following reactions: (2) NH3 (g) 1/2 N2 (g) + 3/2 H2 (g); A2H° - + 46,19 kJ. mol (3) N204 (g) 2 NO2 (g); AgH-+ 58,04 kJ. mol- (4) 2 NH3 (g) > N2H (I) + H2 (g) ; AraH° = + 142,80 kJ. mol- (5) 2 NO, (g) + 4 H2 (g) → N2 (g) + 4 Hz0 (g) ; AsH = - 1 033,66 kJ. mol-
In a generic chemical reaction involving reactants and B and products C and D, aA + bB cC + dD, the standard enthalpy AHin of the reaction is given by AHixn = CAH; (C) + dAH; (D) —aAH (A) – bAH (B) Notice that the stoichiometric coefficients, a, b, c, d, are an important part of this equation. This formula is often generalized as follows, where the first sum on the right-hand side of the equation is a sum over the products and the second sum is over the reactants: where m and n represent the appropriate stoichiometric coefficients for each substance. Part A What is AHxn for the following chemical reaction? CS2(g) + 2H₂O(1)→CO2(g) + 2H₂S(g) You can use the following table of standard heats of formation (AH) to calculate the enthalpy of the given reaction. ■ μÅ Value AHrxn=products H - Σreactants mΔΗ Element/ Compound H(g) H₂(g) H₂O(1) CS2 (g) C(g) C(s) Units ? Standard Heat of Formation (kJ/mol) Express the standard enthalpy of reaction to three significant figures and include the…
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Q.29. Determine, at 298 K, Ar¡Hº, the standard enthalpy of the reaction (1) between hydroquinone with hydrogen peroxide to produce quinone. C,H4(OH)2(aq) + H2O2(aq) → CGH4O2(aq) + 2 H2O (E) (1) Knowing the standard reaction enthalpies, at 298 K, of the following reactions: (2) C6H4(OH)2 (aq) → C6H4O2 (aq) + H2 (g) ; A12H° = + 177.4 kJ mol-1 (3) H2 (g) + O2 (g) → H2O2 (aq) A:3H° = -191.2 kJ mol-1 (4) H2 (g) + ½0O2 (g) → H20 (g) A:4H° = -241.8 kJ mol-1 (5) H2O (g) H2O (€) ArsHº -43.8 kJ mol-1
Hospital patients are often given glucose (blood sugar) through a tube connected to a bottle suspended over their beds. Suppose that this "drip" supplies glucose at the rate of 15 mg per minute, and each minute 20% of the accumulated glucose is consumed by the body. Then the amount y(t) of glucose (in excess of the normal level) in the body after t minutes satisfies the following. y' = 15 − 0.2y (Do you see why?) y(0) = 0 (zero excess glucose at t = 0) Solve this differential equation and initial condition.
Determine, at 298 K, AraH°, the standard enthalpy of the reaction (1) between dinitrogen tetraoxide and hydrazine: (1) N204 (g) + 2 N2H4 (I) 3 N2 (g) + 4 H2O (g) Knowing the standard reaction enthalpies, at 298 K, of the following reactions: (2) NH: (g) 1/2 N2 (g) + 3/2 H2 (g) ; A-2Hº = + 46,19 kl . mol1 (3) N204 (g) 2 NO2 (g) ; Ar3H° = + 58,04 kJ . mol (4) 2 NH3 (g) N2H (I) + H2 (g) ; A-4H° = + 142,80 kJ. mol1 (5) 2 NO2 (g) + 4 H2 (g) N2 (g) + 4 H2O (g) ; ArsH° = – 1 033,66 kl.mol