| 1 |
The born Haber cycle is the best application of law. |
- A. Boyle's
- B. Dalton's
- C. Hess's
- D. Graham's
|
| 2 |
The net change in a chemical reaction is same whether it takes place directly or indirectly is |
- A. Henry's law
- B. Charles's
- C. Hess's lass
- D. Graham's law
|
| 3 |
The change in heat energy of a chemical reaction at constant temperature and pressure is called |
- A. Enthalpy change
- B. Bond energy
- C. Heat of sublimation
- D. Internal energy change
|
| 4 |
The sum of all kinds of energies of atoms, ions or molecules of a system is known as. |
- A. Kinetic energy
- B. Potential energy
- C. Internal energy
- D. Solar energy
|
| 5 |
The net heat change in a chemical reaction is same whether it is brought about in two or more different ways in one or several steps. It is known as |
- A. Henry's law
- B. Hess's law
- C. Joule's principle
- D. Law of conservation of energy
|
| 6 |
Spontaneous processes are mostly |
- A. Reversible
- B. Irreversible
- C. Not irreversible
- D. None of these
|
| 7 |
Standard enthalpy of combustion of carbon is -394 kJ mol-1 than, which is the standard enthalpy of formation of CO2 |
- A. +394 kJ
- B. -394 kJ
- C. 0 kJ
- D. +197 kJ
|
| 8 |
For a given process, the heat chagnes of constant pressure and at constant volume are related to each other as. |
- A. qp= qv
- B. qp<qv
- C. qp>qv
- D. None of these
|
| 9 |
The standard heat of formation is measured at 1 atmosphere and |
- A. 0 <sup>o</sup>C
- B. 100 <sup>o</sup>C
- C. 293 <sup>o</sup>C
- D. 25 <sup>o</sup>C
|
| 10 |
The change in heat energy of a chemical reaction at constant temperature and pressure is called. |
- A. Enthalpy change
- B. Bond energy
- C. Heat of sublimation
- D. Internal energy change
|