Quiz No.3 '' Heat Content ''

16 Questions | By Mraymanali53 | Updated: Mar 14, 2022 | Attempts: 130

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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