In a reaction, if the particle size of the reactants is reduced, what will happen to the reaction rate? A. Decrease B. Increase C. Remain unchanged D. Depend on the reaction 相关知识点: 试题来源: 解析 B。解析:减小反应物的颗粒大小可以增加反应物的表面积,从而增加反应速率。
The social status of an individual bird living in a group depends upon its temperament (i.e., proactive/reactive, or aggressive/docile) and its position in the group’s various rank hierarchies (of size, age, sex, boldness), so that certain individuals within a group become dominant19. All...
To prevent the habituation of the animals, the researcher did not work with these chinchillas regularly but only visited the breeding facility occasionally during testing. When performing the test, the researcher put one hand on the open front of the cage and moved it slowly inside. The reaction...
The surfaces we... A Mannelqvist,MR Groth - 《Applied Physics A》 被引量: 40发表: 2001年 The geometry of reaction trajectories and attracting manifolds in composition space In numerical simulations of combustion processes, the use of dimension reduction to simplify the description of the ...
Age and Size at Maturity in Indonesian Women: A Norm of Reaction? 2011. Age and size at maturity in women: a norm of reaction? Am J Hum Biol 23:305-312.Sohn, K., 2014a. Age and size at maturity in ... K Sohn - 《American Journal of Human Biology the Official Journal of the ...
The resulting suspension was then further diluted with 230 ml of deionized water at 40 °C, afterward a 30% aqueous hydrogen peroxide (H2O2) was added drop wised until the suspension's color changed to yellow, indicating the end of the reaction. A 3% hydrochloric acid (HCl) solution was ...
Uniform and monodisperse ZnSnO3 cubic crystallites were prepared via a solution process involving the reaction of zinc sulfate and sodium stannate at a reaction temperature as low as 0 °C without any surfactant. The size was readily controlled from 40 to 600 nm by varying the reaction temperatu...
The size of the nanoparticles was successfully controlled by the temperature of the synthesis and the amount of ricinoleic acid present in the reaction mixture to between 9 and 30 nm. The presence of the ricinoleic acid on nanoparticles' surfaces enabled the preparation of colloidal suspensions in ...
The reaction of HCl gas with fully calcined commercial limestone particles was carried out experimentally using a thermorecording balance. The HCl gas °C were investigated. Fundamental aspects of the reaction have been presented elsewhere. The significance of this study lies in the use of commercial...
. 1992. Comparing bivariate reaction norms among species: time at metamorphosis in three species of Hyla (Anura: Hylidae). Oecologia 90:288-293... MS Blouin - 《Journal of Morphology》 被引量: 7发表: 1991年 Proximate developmental causes of limb length variation between Hyla cinerea and Hyla...