皮皮学，免费搜题
登录
搜题
【简答题】
根据反应速率碰撞理论，反应物浓度和压力不变时，若加入正催化剂，则反应活化能E a ______，能量因子f______，速率常数k______；若反应温度不变，增大反应物浓度，则反应活化能E a ______，能量因子f______，速率常数k______。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Engineers had a better choice of material, ______________ (当新发明被投入使用以后).
【单选题】A ) It looks unusual. B) It transforms. C) It uses better material. D) It is a new product.
A.
It looks unusual.
B.
It transforms.
C.
It uses better material.
D.
It is a new product.
【单选题】After synthetic ____, engineers had a better choice of material.
A.
created
B.
has created
C.
has been created
D.
had been created
【单选题】After synthetic ____, engineers had a better choice of material.
A.
created
B.
has created
C.
has been created
D.
had been created
【单选题】Mr. H never gets beyond corporal and material ________.
A.
verities
B.
value
C.
profit
D.
benefit
【单选题】If a better material______, the cost of the product would have been decreased.
A.
had been used
B.
had been using
C.
being used
D.
using
相关题目：