Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 6)
6.
An adiabatic process is one in which
Discussion:
49 comments Page 4 of 5.
Amit said:
1 decade ago
In this process dQ=0.
If dQ=0.
Then we know dU=dW+dQ.
du=Dw (dQ=0).
If dQ=0.
Then we know dU=dW+dQ.
du=Dw (dQ=0).
Akshay jain said:
1 decade ago
Adiabatic changes in temperature occur due to changes in pressure of a gas while not adding or subtracting any heat.
Prasad said:
1 decade ago
In adiabatic process, no heat transfer takes place. And there, may be a temperature change, and it need not involve nay heat transfer to it. It may occur naturally as well. For eg. I am compressing a cylinder, automatically pressure will rise, so also the temp. Same as reverse.
And dq = -dw.
So answer is correct.
And dq = -dw.
So answer is correct.
Rajkumar said:
1 decade ago
During adiabatic process, heat transfer will not takes place. Then how temperature will change. Answer is wrong.
DIMPU SAI KRISHNAN said:
1 decade ago
Adiabatic process is the transfer of energy as the work, with out transfer of heat between its system and surroundings.
Mithilesh kumar said:
1 decade ago
According to the rule of adiabatic no heat interaction will occur. Then how change in gas temp will be adiabatic?
Prashanthi said:
1 decade ago
Adiabatic changes in temperature occur due to changes in pressure of a gas while not adding or subtracting any heat. In contrast, free expansion is an isothermal process for an ideal gas.
Maniraj said:
1 decade ago
No heat enters or leaves the system by definition,
The temperature of the gas changes (possible due to internal work done).
The change in internal energy is equal to the mechanical work done (dQ=0).
The temperature of the gas changes (possible due to internal work done).
The change in internal energy is equal to the mechanical work done (dQ=0).
Parveen said:
1 decade ago
In this process no heat is added or withdrawn from the system so how another process can happen only a option is true another one is wrong.
Vasanth kumar said:
1 decade ago
As per adiabatic process assumption there will be no heat transfer in or out of the system. First condition is satisfied.
The internal energy within cause the work, So that temperature changes.
As per first law of thermodynamics dQ equals to du+dw.
Heat transfer is zero du equal -dw. So that third is also correct.
The internal energy within cause the work, So that temperature changes.
As per first law of thermodynamics dQ equals to du+dw.
Heat transfer is zero du equal -dw. So that third is also correct.
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