A. the rate of a chemical reaction B. the temperature of a chemical reaction C. the extent of a chemical reaction at equilibrium D. the pressure of a chemical reaction 相关知识点: 试题来源: 解析 C。解析:平衡常数 K 是衡量化学反应在平衡状态下的程度。A 选项是反应速率;B 选项是温度;D 选...
In a chemical reaction, if the temperature is increased, the reaction rate usually ___. A. decreases B. increases C. remains constant D. becomes unpredictable 相关知识点: 试题来源: 解析 B。温度升高,化学反应速率通常会增加。A 选项“decreases”表示降低,错误;C 选项“remains constant”表示保持...
The reaction rate is controlled by control rods that absorb excess ___. The controllability of nuclear reactors depends on the fact that a small fraction of neutrons resulting from fission are delayed. The time delay between the fission and the release of the neutrons ___changes in reaction r...
一道GRE数学题,请详解The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present.If the concentration of chemic
What equipment is needed to measure the rate of reaction of an enzyme in a fruit? e.g PineappleAnswer and Explanation: This would depend upon the manner in which you were conducting your experiment. One experiment is seen in the following activity https://study....
A. decreases B. remains the same C. increases D. becomes unpredictable 相关知识点: 试题来源: 解析 C。原因:文中明确指出“When the concentration of reactants is increased, the reaction rate also increases.”。 反馈 收藏
products is second order in A and first order in B, then the rate law is rate = _ .ABCD相关知识点: 试题来源: 解析 首先,题目中告知该反应对于 A 是二级反应,对于 B 是一级反应。 对于反应物 A 是二级反应,所以其浓度项的幂次应该是 2;对于反应物 B 是一级反应,所以其浓度项的幂次应该是...
The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increased by 100 percent, which of the following is closest to the...
aIt should be noted that in leaching the rate of reaction is of great importance, since the temperature used is relatively low and many factors combine to keep the rate slow. 值得注意的是,在浸出反应的率是重要性,因为半新的温度相对地是低落,并且许多因素结合保持率慢。[translate]...
Problem Solving_The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increa