| 1 |
A material or a collection of materials which is under study is called |
- A. State function
- B. Degree and joule
- C. Degree and ergs
- D. Calorie and joule
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| 2 |
The enthalpy of combustion is |
- A. Positive
- B. Negative
- C. Either positive or negative
- D. No correlation
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| 3 |
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| 4 |
Calorie is equivalent to |
- A. 0.4184 J
- B. 41.84 J
- C. 4.184 J
- D. 418.4 J
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| 5 |
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
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| 6 |
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
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| 7 |
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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| 8 |
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
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| 9 |
Which is not is state function |
- A. Enthalpy
- B. Entropy
- C. Pressure
- D. work
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| 10 |
Most of the reaction which give stable products are |
- A. Exothermic
- B. Endothermic
- C. Isothermal
- D. None of these
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