MOOC Basic Chemistry(Harbin Institute of Technology)1461239167 最新慕课完整章节测试答案
Chapter 1 The reaction heat
文章目录
Chapter 1 The reaction heat
1、单选题：
Which term is not the state function?
选项：
A: enthalpy
B: internal energy
C: heat
D: mass
答案: 【 heat】
2、单选题：
Which term is not the state function?
选项：
A: work
B: volume
C: entropy
D: Gibbs free energy
答案: 【 work】
3、单选题：
Which processe is exothermic?
选项：
A: boil water
B: melt ice
C: evaporate water
D: freeze water
答案: 【 freeze water】
4、单选题：
Which processes is endothermic?
选项：
A: C(s) + O2(g)=CO2(g)
B: 2H2(g) + O2(g)=2H2O(l)
C: 2NH3(g)=3H2(g) + N2(g)
D: 2C(s) + O2(g)=2CO(g)
答案: 【 2NH3(g)=3H2(g) + N2(g)】
5、单选题：
For a system, suppose it adsorb 100 kJ of heat from the surroundings and do 50 kJ of work to the surroundings, how much is its internal energy change?
选项：
A: +150kJ
B: -150 kJ
C: 50 kJ
D: -50 kJ
答案: 【 50 kJ 】
6、单选题：
Which standard molar enthopy of formation is zero?
选项：
A: CO2
B: C (diamond)
C: NH3
D: O2
答案: 【 O2】
7、单选题：
In the following reactions, which ΔrHmΘ is equal to the ΔfHmΘ?
选项：
A: 1/2N2 (g) + 3/2H2(g) = NH3(g)
B: CaCO3(s) = CaO(s) + CO2(g)
C: NaOH (aq) + HCl(aq) = NaCl(aq) + H2O(l)
D: CO(g) + 1/2O2(g) = CO2(g)
答案: 【 1/2N2 (g) + 3/2H2(g) = NH3(g)】
8、单选题：
Which item is equal to the reaction heat in the constant volume process of closed system?
选项：
A: ∆S
B: -PV
C: ∆U
D: ∆G
答案: 【 ∆U】
9、单选题：
Which item is equal to the enthalpy?
选项：
A: U+PV
B: U-PV
C: U-TV
D: U+TV
答案: 【 U+PV】
10、单选题：
For the reaction, CO(g)+1/2O2(g)=CO2(g) ∆H= -280.0 kJ/mol and C(s)+O2(g)=CO2(g) ∆H= -393.5 kJ/mol, how much is the reaction heat of C(s)+1/2O2(g)=CO(g)?
选项：
A: 113.5 kJ/mol
B: -113.5 kJ/mol
C: -673.5 kJ/mol
D: 673.5 kJ/mol
答案: 【 -113.5 kJ/mol】
11、单选题：
For a reaction, if it releases 398 kJ/mol of heat in the forward process, how much is the heat of its reverse process?
选项：
A: 398 kJ/mol
B: -398 kJ/mol
C: 0 kJ/mol
D: unknown
答案: 【 398 kJ/mol】
12、单选题：
In which case the reaction heat is equal to the enthalpy change?
选项：
A: The process of constant pressure for a closed system
B: The process of constant volume for a closed system
C: The process of constant pressure for an opened system
D: The process of constant volume for an opened system
答案: 【 The process of constant pressure for a closed system】
13、判断题：
Under standard state，the enthalpy change of △rHmΘ for the reaction C(graphite) + O2(g) =CO2(g) is equal to the △fHmΘ of CO2.
选项：
A: 正确
B: 错误
答案: 【 正确】
14、判断题：
The change of work in any process can be calculated by ΔW=W2-W1
选项：
A: 正确
B: 错误
答案: 【 错误】
15、判断题：
The following item of △H, H, S and T are all state function.
选项：
A: 正确
B: 错误
答案: 【 错误】
16、判断题：
According to the Hess law, the reaction heat is state function.
选项：
A: 正确
B: 错误
答案: 【 错误】
17、判断题：
The internal energy of a system is state function.
选项：
A: 正确
B: 错误
答案: 【 正确】
Chapter 2 The direction and equilibrium of reaction
Chapter 2 The direction and equilibrium of reaction
1、单选题：
Which substance has the biggest entropy?
选项：
A: H2O(l)
B: NaCl (s)
C: N2 (g)
D: CaCO3(s)
答案: 【 N2 (g) 】
2、单选题：
Which value is zero at standard state?
选项：
A: SmΘ (standard entropy)
B: GmΘ (standard Gibbs free energy)
C: ΔfHmΘ (standard enthalpy of formation)
D: UmΘ (internal energy)
答案: 【 ΔfHmΘ (standard enthalpy of formation)】
3、单选题：
Which entropy change is positive?
选项：
A: O2(g)+2H2(g)=2H2O(g)
B: CaCO3(s)=CaO(s)+CO2(g)
C: N2(g)+3H2(g)=2NH3(g)
D: 2Mg(s)+O2(g)=2MgO(s)
答案: 【 CaCO3(s)=CaO(s)+CO2(g)】
4、单选题：
Which reaction is spontaneous under the standard state?
选项：
A: 1/2N2 (g) + 3/2H2(g) = NH3(g) ΔrGmΘ= -16.5kJ/mol
B: CaCO3(s) = CaO(s) + CO2(g) ΔrGmΘ=130.4kJ/mol
C: H2O(l) = H2(g) +1/2O2(g) ΔrGmΘ=237.2kJ/mol
D: CO2(g) = C(s) + O2(g) ΔrGmΘ=394.4kJ/mol
答案: 【 1/2N2 (g) + 3/2H2(g) = NH3(g) ΔrGmΘ= -16.5kJ/mol】
5、单选题：
Which case is favored for the reaction occurred spontaneouly with temperature increasing?
选项：
A: ΔrHmΘ＞0, ΔrSmΘ＜0
B: ΔrHmΘ＞0, ΔrSmΘ＞0
C: ΔrHmΘ＜0, ΔrSmΘ＜0
D: uncertain
答案: 【 ΔrHmΘ＞0, ΔrSmΘ＞0】
6、单选题：
Which function is affected by the temperature obviously?
选项：
A: ΔrHmΘ
B: ΔrSmΘ
C: ΔrGmΘ
D: QP
答案: 【 ΔrGmΘ】
7、单选题：
For the reaction 2SO3(g)=2SO2(g)+O2(g), it’s KpΘ is 32，if the equilibrium concentration of [SO3]=[O2]=2.0mol·L-1 , how much is the equilibrium concentration of SO2?
选项：
A: 0.032 mol·L-1
B: 8.0 mol·L-1
C: 0.25 mol·L-1
D: 2.7 mol·L-1
答案: 【 8.0 mol·L-1 】
8、单选题：
Increase the volume of the system 2SO3(g)=2SO2(g)+O2(g), which side will the reaction move to?
选项：
A: left
B: right
C: uncertain
D: not move
答案: 【 right】
9、单选题：
For the exothermic reaction 2C(graphite) +O2(g) =2CO(g), which side will it move to with increasing the temperature?
选项：
A: left
B: right
C: uncertain
D: not move
答案: 【 left】
10、判断题：
The △rS mΘ of the reaction 2NO(g)+O2(g) =2NO2(g) is negative.
选项：
A: 正确
B: 错误
答案: 【 正确】
11、判断题：
All these items H, S, G, △H, △S and △G are varied with temperature.
选项：
A: 正确
B: 错误
答案: 【 错误】
12、判断题：
If△GΘ> 0, the reaction can’t occur spontaneously at any condition.
选项：
A: 正确
B: 错误
答案: 【 错误】
13、判断题：
For any reaction, the equilibrium constant KΘ will increase with temperature increasing.
选项：
A: 正确
B: 错误
答案: 【 错误】
14、判断题：
For the reaction 2C(graphite) +O2(g) =2CO(g), △rSmΘ is positive.
选项：
A: 正确
B: 错误
答案: 【 正确】
15、判断题：
Decrease temperature is favored for the reaction N2(g) +H2(g)=NH3(g) to produce ammonia.
选项：
A: 正确
B: 错误
答案: 【 错误】