| 1 |
In endothermic reactions, the heat content of the |
- A. Products is more then that of reactants
- B. Reactants is more than that of products
- C. Both a and b
- D. Reactant and products is equal
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| 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 known as |
- A. Henry's law
- B. Hess's law
- C. Joule's principle
- D. Law of conservation of energy
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| 3 |
The S.I. units for the molar heat capacity are |
- A. Joule Cm<sup>-3</sup>degree<sup>-1</sup>
- B. Joule deg<sup>-1</sup>atm<sup>-1</sup>
- C. Joule deg<sup>-1</sup>mol<sup>-1</sup>
- D. Joule deg<sup>-1</sup>kg<sup>-1</sup>
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| 4 |
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
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| 5 |
Which of the following value of heat of formation indicates that the product is least stable. |
- A. -94 KJ
- B. -231.6 KJ
- C. +21.4 KJ
- D. +70 KJ
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| 6 |
Born Haber cycle is used to determine the |
- A. Lattice energy
- B. Enthalpy of formation
- C. Enthalpy of ionization
- D. Enthalpy of dissociation
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| 7 |
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
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| 8 |
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
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| 9 |
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| 10 |
Standard enthalpy change when one mole of compound is formed from their elements at standard state is. |
- A. Heat of formation
- B. Standard heat of formation
- C. Heat of combustion
- D. Standard Heat of neutralization
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