Quiz 3b in CHEM 40 - 001: Thermochemistry and Calorimetry - Prof. Malinda E. Pauly, Quizzes of Chemistry

Download Quiz 3b in CHEM 40 - 001: Thermochemistry and Calorimetry - Prof. Malinda E. Pauly and more Quizzes Chemistry in PDF only on Docsity! CHEM 40 - 001 Name: 6b\.t-bI '-\ x (c*\ r 4.t3q3 QUIZ 3b (20 points) :-"'4 - I aoo cr4 Spring 2009 M.Pauly POSSIBLY USEFUL IMORMATION: l cal:4.184 J specific hear tLO(l) =4.tB4rg..C 1. Thesp€cific beat of,oickel is 0.445 rg.K. How much heat (intcaD is requi.edtoheata 18.56 gpieceof nickel hom 2.2 ro 216.l"C? [4 points] f , " * t t x a. ' -x s( - $.aul (+r.= - r., ")( ".++sr7r. zS zvl Tvt"+, 2Nols)-2No(s)+qG) AH'"" = 114.1 kJ a) Is the reaction exothermic or endothermic? How do you know? en"t oJfunj c b) If 1.259 of NO, is converted completely toNO and Or, what quantity of heat is absorbed or evolved? -.{& A* is, (ani4ve (-ew61 # , p^l;*ds ts h)CW 1.$,"- ,".rla h) f t r+,r r r 4or 2n^.1 No; l .s . r112 6(.r5; No2r #fi - l l ( . .Jt _ 2^- ltr0r- o. oETaqBz F14 E.1t x to ke- Nifogenmonoxide has been found to be involved in.a \4ide ralge ofbiological processes. Brown Nqg{s can decompose to form oxygen and NO gas as shown in rhe-thermochEmical equation below. [d porntsj {.3s kJ (ebs.tE<&)