6) For which one of the following reactions is AH°; 6) ot which one of the following reactions is AH A) N2 (g) + 3H2 (g) - 2NH3 (g) B) (1/2)N2 (g) + O2 (g) - NO2(g) C) P (g) + 4H (g) + Br (g) - PH4B (1) D) 12C (g) + 11H2 (g) + 110 (g) - C6H22011 (g) E) 6C (s) + 6H (g) - C6H6 (1) rxn equal to the heat of formation of the product? 7) In the reaction below, AH°f is zero for Ni (s) + 2CO (g) + 2PF3 (g) - Ni(CO)2(PF3)2 (1) A) Ni (s) B) CÓ (g) C) Ni(CO)2(PF3)2 (1) D) PF3 (g) E) both CO (g) and PF3 (g) 8) The value of AH° for the reaction below is -126 kJ. kj are released when 2.00 mol of NaOF 8) formed in the reaction? 2Na202 (s) + 2H2O (1) – 4NAOH (s) + O2 (g) A) 3.9 B) -126 C) 63 D) 7.8 E) 252 9) The value of AH° for the reaction below is -336 kJ. Calculate the heat (kJ) released to the surroundin 9) 9 when 23.0 g of HCl is formed. CH4 (g) + 3C12 (g) - CHC13 (1) + 3HCI (g) A) 211 kJ B) -336 kJ C) 2.57 x 103 kJ D) 70.7 kJ E) 177 kJ 10) The temperature of a 15-g sample of lead metal increases from 22 °C to 37 °C upon the addition of 29.0 J of heat. The specific heat capacity of the lead is A) -29 10) J/g-K. D) 0.13 B) 29 C) 7.8 E) 1.9

6) For which one of the following reactions is AH°; 6) ot which one of the following reactions is AH A) N2 (g) + 3H2 (g) - 2NH3 (g) B) (1/2)N2 (g) + O2 (g) - NO2(g) C) P (g) + 4H (g) + Br (g) - PH4B (1) D) 12C (g) + 11H2 (g) + 110 (g) - C6H22011 (g) E) 6C (s) + 6H (g) - C6H6 (1) rxn equal to the heat of formation of the product? 7) In the reaction below, AH°f is zero for Ni (s) + 2CO (g) + 2PF3 (g) - Ni(CO)2(PF3)2 (1) A) Ni (s) B) CÓ (g) C) Ni(CO)2(PF3)2 (1) D) PF3 (g) E) both CO (g) and PF3 (g) 8) The value of AH° for the reaction below is -126 kJ. kj are released when 2.00 mol of NaOF 8) formed in the reaction? 2Na202 (s) + 2H2O (1) – 4NAOH (s) + O2 (g) A) 3.9 B) -126 C) 63 D) 7.8 E) 252 9) The value of AH° for the reaction below is -336 kJ. Calculate the heat (kJ) released to the surroundin 9) 9 when 23.0 g of HCl is formed. CH4 (g) + 3C12 (g) - CHC13 (1) + 3HCI (g) A) 211 kJ B) -336 kJ C) 2.57 x 103 kJ D) 70.7 kJ E) 177 kJ 10) The temperature of a 15-g sample of lead metal increases from 22 °C to 37 °C upon the addition of 29.0 J of heat. The specific heat capacity of the lead is A) -29 10) J/g-K. D) 0.13 B) 29 C) 7.8 E) 1.9

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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