题目
单项选择题
A reaction with a positive ΔG is: Please choose the correct answer from the following choices,
选项
A.an exergonic reaction.
B.dependent upon an input of free energy in order to occur.
C.at equilibrium.
D.always dependent upon energy input from ATP hydrolysis.
E.never a useful biochemical reaction.
查看解析
标准答案
Please login to view
思路分析
First, let's lay out the question and the available choices in plain terms: a reaction with a positive ΔG is being described, and we must pick which statement best fits that scenario.
Option 1: 'an exergonic reaction.' An exergonic reaction has a negative ΔG, meaning it releases free energy. Since our condition is a positive ΔG, this option is incorrect becau......Login to view full explanation登录即可查看完整答案
我们收录了全球超50000道考试原题与详细解析,现在登录,立即获得答案。
类似问题
The delta free energy of a reaction is independent of:
Which of the following statements best describes an endergonic reaction?
Ethylene (CH2=CH2) represents one of the most valuable industrial chemicals. It is commonly used to synthesis styrene (C6H5C=CH2), the building block of polystyrene, a versatile plastic used to make a wide variety of consumer products. The overall chemical synthesis of styrene is given below: C6H6(l) + CH2=CH2(g) → C6H5C=CH2(l) + H2 (g) [table] Compound | ∆Hf0 (298.15K), kJ mol-1 | S0 (298.15K), J K-1 mol-1 C6H6(l) | 48.7 | 173.26 CH2=CH2(g) | 52.47 | 219.32 C6H5C=CH2(l) | 108.0 | 240.5 H2 (g) | 0.0 | 114.7 [/table] The standard Gibbs free energy of the reaction, ∆Gr0, is 17.97 kJ mol-1 at 25.00 °C. Which of the following expressions best describes the spontaneity of the reaction?
The reaction, M2O3(s) + C(s) → M(s) + CO2(g), is spontaneous at low temperatures but non-spontaneous at high temperatures. If we assume that, since the physical states do not change, the values of ΔHTo and ΔSTo are constant over a wide temperature range, including 25.0°C, we can deduce that, over this range
更多留学生实用工具
希望你的学习变得更简单
加入我们,立即解锁 海量真题 与 独家解析,让复习快人一步!