A 175 g piece of iron and a 175 g piece
1 answer:
Answer : The sample undergoes the greater heat change is, aluminum.
Explanation :
Specific heat capacity : It is defined as the amount of heat absorbed by one gram of a substance to raise its temperature by one degree Celsius.
Formula used for specific heat capacity :
where,
C = specific heat capacity
m = mass of a substance
q = heat required
= change in temperature of substance
As we know that the heat change is directly proportional to the specific heat capacity at constant temperature and mass that means higher the specific heat capacity, the higher will be the heat change and vice-versa.
The specific heat capacity of iron and aluminum is, 0.449 J/g.°C and 0.903 J/g.°C respectively.
From this we conclude that the specific heat capacity of aluminum is greater than iron. So, aluminium sample undergoes the greater heat change.
Hence, the sample undergoes the greater heat change is, aluminum.
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Explanation:
According to Le Chatelier's principle, any disturbance caused in an equilibrium reaction will shift the equilibrium in a direction that will oppose the change.
As the given reaction is as follows.
(a) When increase the temperature of the reactants or system then equilibrium will shift in forward direction where there is less temperature. It is possible for an endothermic reaction.
Thus, formation of will increase.
- (b) When we decrease the volume (at constant temperature) of given reaction mixture then it implies that there will be increase in pressure of the system. So, equilibrium will shift in a direction where there will be decrease in composition of gaseous phase. That is, in the backward direction reaction will shift.
Hence, formation of will decrease with decrease in volume.
- When we increase the mount of
then equilibrium will shift in the direction of decrease in concentration that is, in the forward direction.
Thus, we can conclude that formation of will increase then.