Quiz No.3 '' Heat Content ''
16 Questions
| Total Attempts: 96
Senior One
Questions and Answers
- 1.State whether each of the following are exothermic or endothermic. a-1. H + Cl ---------- HCl H=-432 kJ
- A.
Exo
- B.
Endo
- 2.B-. H2O vapour à H2O liquid
- A.
ENdo
- B.
Exo
- 3.When two chemicals mix their temperature rises
- A.
Exo
- B.
Endo
- 4.Plants take in light energy for photosynthesis
- A.
Exo
- B.
Endo
- 5.What does (delta)H stand for
- A.
The specific heat of substance
- B.
Heat of reaction for chemical reaction
- C.
one calorie given off by a reaction
- 6.
This reaction show the burning of methane in oxygen Is the reaction exothermic or endothermic overall?- A.
Exo
- B.
Endo
- 7.Consider the thermal energy transfer during a chemical process. When heat is transferred to the system, the process is said to be _______ and the sign of H is ________.
- A.
Exo , positive
- B.
Endo , positive
- C.
Exo, negative
- 8.As element increase its stability , its reaction will be ....................
- A.
Endothermic
- B.
Exothermic
- C.
No answer
- 9.Changing of graphite into diamond is difficult but it undergo type of ................reaction
- A.
Exothermic
- B.
Endothermic
- 10.Which arrangement is right according to higher heat content ..(H ice , H water , Hvapour)
- A.
Ice ,higher than vapour , higherthan ice
- B.
Vap higherthan ice lessthan water
- C.
Ice higherthan water higherthan vapour
- D.
No answer
- 11.Specific heat is sum of all energies in 1mole of any matter
- A.
True
- B.
False
- 12.Determination of heat content practically is so difficult and has high scientific error
- A.
True
- B.
False
- 13.Heat content of compound is differ from heat content of element
- A.
True
- B.
False
- 14.Reaction of baking powder is Exothermic as it take heat from glass after broken the crystal lattice of molecules
- A.
True
- B.
False
- 15.Heat content of reaction Never Equal Zero
- A.
True
- B.
False
- 16.
Add the bicarbonate soda gradually to avoid overflowing foam and stirring with the thermometer is this reaction is Endothermic Or Exothermic Reaction ?
- A.
Endothermic Reaction
- B.
Exothermic Reaction
- C.
Not related answer
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