| 1 |
The pressure of oxygen inside the bomb calorimeter is. |
- A. 100 atm
- B. 50 atm
- C. 25 atm
- D. 20 atm
|
| 2 |
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 knnown as |
- A. Henry's law
- B. Hess's law
- C. Joule's principle
- D. Law of combustion
|
| 3 |
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
|
| 4 |
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
|
| 5 |
Which one of the following enthalpies is always an exothermic process. |
- A. Enthalpy of atomization
- B. Enthalpy of neutralization
- C. Enthalpy of ionization
- D. Enthalpy of dissociation
|
| 6 |
The heat contents of the system of known as. |
- A. Entropy
- B. Enthalpy
- C. Work
- D. Free energy
|
| 7 |
Which of the following statement is contrary to the first law of thermodynamics |
- A. An equivalent amount of heart energy can neither be created nor destroyed
- B. One form of energy can be transferred into an equivalent amount of other kinds of energy
- C. In an adiabatic process, the work done is independent of its path
- D. Continuous production of mechanical work without supplying an equivalent is amount of heat possible
|
| 8 |
One of the following statements about Born-Haber cycle is correct. Which is that statement |
- A. Born-Haber cycle is different from Hess's law
- B. The energy change in a cyclic process is not zero
- C. The lattice energy of the crystalline substances can be calculated easily
- D. Heat of formation of the product and the lattice energy of the substance can be calculated simultaneously
|
| 9 |
the value of delta H and delta E for liquids and solids is almost same because. |
- A. No change in temperature
- B. Heat absorbed
- C. No change in volume
- D. Heat evolved
|
| 10 |
A chemical change always involve |
- A. Absorption of heat
- B. Evolution of heat
- C. Either absorption or evolution of heat
- D. The liberation of heat and light energy
|