题目

臭氧是理想的烟气脱硝试剂，其脱硝反应为2NO2(g)＋O3(g) N2O5(g)＋O2(g)，若反应在恒容密闭容器中进行，下列由该反应相关图像作出的判断正确的是( ) AB 升高温度，平衡常数减小0～3 s内，反应速率为 v(NO2)＝0.2 mol·L－1 CD t1时仅加入催化剂，平衡正向移动达平衡时，仅改变x，则x为c(O2) 答案：A [解析] 由反应过程的能量变化图可知正反应为放热反应，因此升高温度，反应逆向进行，平衡常数减小，A项正确；0～3 s内，v(NO2)＝(1.0 mol/L－0.4 mol/L)÷3 s＝0.2 mol·L－1·s－1，B项错误；加入催化剂，正、逆反应速率同等程度加快，平衡不移动，C项错误；达到平衡时，增加c(O2)平衡逆向移动，NO2的转化率阅读下列应用文及相关信息，并按照要求匹配信息。首先请阅读下列英语读物的封面及基本信息: A．National Geographic Complete Birds of the WorldLIMITED-TIME OFFER: Order today and save $5.00!Was: $35.00Now: $30.00Hardcover384 pages; 900 color photographs and illustrationsB．Visions of Paradise National Geographic photographers reveal unique wonders of nature.$35.00Hardcover304 pages; 250 photographsC．National Geographic Adventure MagazineJoin the adventure with National Geographic Adventure Magazine. Please allow 4-6 weeks for the delivery of the first issue within the U.S. and Canada. For outside of the U.S. and Canada, please allow 8-12 weeks for the delivery of the first issue.$12.00D．Cesar's Way:The Natural, Everyday Guide to Understanding and Correcting Common Dog ProblemsAmerica's most sought-after expert reveals what dogs truly need to live a happy and fulfilled life.Was: $24.95Now: $14.95Hardcover243pagesE. National Geographic Ultimate Field Guide Photography, 2nd EditionSoftcover400 pages; 272 color and black-and-white photographsThoroughly updated for 2009, straightforward and entertaining, this is the ultimate source for people seeking real how-to advice from the editors and photographers of National Geographic. It is carefully designed to lead the amateur photographer to better pictures and is comprehensive in scope, explaining the entire process from choosing a camera to taking the pictures to printing, scanning, and archiving the images.F. New York: Destination Music CDInnovative artists continue New York's cabaret tradition.$19.95It's Showtime! 下面是读者的简要内容。请把相关的内容与它们的书名匹配起来。【小题1】. Hinny is filled with hope and inspiration to celebrate and protect the world's environments. Looking through the book, he knows that every beautiful sight that meets his eyes is a precious dreamland worth preserving a special place that feels like “Heaven on Earth”.【小题2】 Jumpy is pleased that his newly-bought book is a fascinating colorful guide to all the birds on the planet, their identification, structures and plumages, habitats, behaviors, and ranges. 【小题3】 Pope is using a film camera for his part-time photographs by means of his guide photography. Now he is armed with the practical know how-to get great images. 【小题4】Jackson will get a wealth of ideas for making adventure a part of his life with the magazine! He likes every issue of this magazine packed with breathtaking photography and compelling features on topics such as diving, snorkeling, skydiving, hang gliding, kayaking, rafting, sailing, climbing, hiking, and more. 【小题5】Dingy is invited to join an excursion into the rich rhythms and textures of music from the far reaches of the world. He enjoys the diverse mix of memorable music from these special corners of the Earth as he browses through some of the fascinating cultural facts and maps of each region and then sets off for his destination!