1. Positive
2. Negative
3. Zero
4. Immpossible to know
Zero
1. 100 eu
2. 60 eu
3. -60 eu
4. -100 eu
60 eu
1. There is no exchange of energy with the surroundings
2. There is exchange of mass and energy with the surroundings
3. There is no exchange of mass and energy with the surroundings
4. There is exchange of mass with surroundings
There is exchange of mass with surroundings
1. Use of different reactants for the same product
2. The nature of intermediate reaction steps
3. The difference in the initial and final temperature of the involved substances
4. The physical state of the reactants and products.
The nature of intermediate reaction steps
1. RlnV2/V1
2. 2.303RlnV2/V1
3. RlnV1/V2
4. Rln(V2-V1)
RlnV2/V1
1. Hr
2. Hr>Hp
3. Hr=Hp
4. Hr=Hp and Hp=0
Hr>Hp
1. -196kJ mol-1
2. +196kJ mol-1
3. +948kJ mol-1
4. -948kJ mol-1
-196kJ mol-1
1. Entropy
2. Pressure
3. Temperature
4. Molar volume
Entropy
1. Bauxite
2. Malachite
3. Zinc blende
4. Pig iron
Pig iron
1. Blast furnace
2. Electric furnace
3. Bessemer convertor
4. Reverberatory furnace
|
Reverberatory furnace |