A 155 g sample of an unknown substance was heated from 25°c to 40°c. in the process, the substance absorbed 569 calories of ener
2 answers:
Answer:
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed= 569 calories
m= mass of substance = 155 g
c = specific heat capacity = ?
Initial temperature = = 25.0°C
Final temperature = = 40.0°C
Change in temperature ,
Putting in the values, we get:
The specific heat of the substance is
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The decomposition reaction for hydrogen peroxide is given below:
2
→ 2
O +
This is a decomposition reaction.
Reactions in which a reactant breaks into two or more products are known as Decomposition reactions.
AB → A + B
here, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction
The decomposition reaction of decomposing hydrogen peroxide is exothermic. When the hydrogen peroxide undergoes a decomposition reaction, heat is also released along with water and oxygen.
Hence the reaction for decomposing hydrogen peroxide is :
2
→ 2
O +
If you need to learn more about Decomposition reaction, click here
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