A solid cylinder has a radius of 2cm and a length of 7cm.It has a density of 3.1g/cm3.What is the mass of the cylinder?
1 answer:
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Answer:
The heating effect of the residential heat pump will be 7.2 KJ/Sec
Explanation:
The rate of heat produced ()
Here, Coefficient of performance = 1.6
Here, Consume of electrical power =4.5
The rate of heat produced ( ) = Coefficient of performance × Consume of electrical power
∴ = 1.6 × 4.5
= 7.2 KJ/SEC
∴ The heating effect of the residential heat pump will be 7.2 KJ/Sec
Answer : The oxidizing and reducing agents are, and
.
Explanation :
Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.
Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.
Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.
Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.
Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.
The given redox reaction is:
The half oxidation-reduction reactions are:
Oxidation reaction :
Reduction reaction :
The oxidation state of oxygen in and
is, (-1) and (-2) respectively.
In this reaction, 'Fe' is oxidized from oxidation (+2) to (+3) and 'O' is reduced from oxidation state (-1) to (-2). Hence, '' act as a reducing agent and '
' act as a oxidizing agent.
Thus, the oxidizing and reducing agents are, and
.