1. It is reaction for which H=35
2. It is reaction for which ?H=0
3. It is an endothermic process
4. It is an exothermic process
It is an endothermic process
1. Normal energy
2. Activation energy
3. Threshold energy
4. Average energy
Threshold energy
1. 5 K cal/mole
2. 10 K cal/mole
3. 15 K cal/mole
4. 20 K cal/mole
10 K cal/mole
1. 8 times
2. 4 times
3. 2 times
4. 1/2
8 times
1. Neither energy nor matter are exchanged
2. Both energy and mater are exchanged with surroundings
3. Only matter is exchanged with surroundings.
4. Only energy is exchanged with surroundings
Both energy and mater are exchanged with surroundings
1. Law of dis proportination
2. Law of multiple proportions
3. Law of conservation of mass
4. Law of conservation of energy
Law of conservation of energy
1. P=E+HV
2. H=EPV
3. H=E+PV
4. E=H+PV
H=E+PV
1. Neither endothermic nor exothermic
2. May be exothermic and endothermic
3. Endothermic
4. Exothermic
Exothermic
1. PCl3(g)+Cl2(g)→PCl5(g)
2. 3H2(g)+N2(g)→2NH3(g)
3. N2(g)+O2(g)→2NO(g)
4. C(s)+O2(g)→CO2(g)
N2(g)+O2(g)→2NO(g)
1. Increases by 14kJ
2. Decreases by 14kJ
3. Increases by 6kJ
4. Decreases by 6kJ
Increases by 6kJ