Mechanical Engineering - Thermodynamics - Discussion

Discussion Forum : Thermodynamics - Section 1 (Q.No. 6)
6.
An adiabatic process is one in which
no heat enters or leaves the gas
the temperature of the gas changes
the change in internal energy is equal to the mechanical workdone
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
49 comments Page 3 of 5.

Sainath said:   10 years ago
Hai, I am sairam.

Temperature is a degree of measure of hotness or coldness of a body. Then how can temperature changes in constant heat (adiabatic) process?

Krishan said:   1 decade ago
In adiabatic process no heat enter and lease system then work done by or on the system is zero.

dQ=0 then dW=0 As per first law of thermodynamics.

Sahebagou,Mallappa said:   1 decade ago
The answer is correct because temperature variation takes place inside the system. Any way it won't transfer to outer area hence it has sealed.

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In this process no heat is added or withdrawn from the system so how another process can happen only a option is true another one is wrong.

Kuna Karteek said:   9 years ago
Internal energy is a function of temperature so temperature must be change. For more information refer adiabatic free expansion process.

AnKit said:   8 years ago
In Option B, Temperature of system changes with heat addition or Rejection. How could it possible?

I think the Option A is correct.

Abhinava srivastava said:   1 decade ago
An adiabatic as no heat added then dw = 0.

dq = du+dw.
dq = 0, dw = 0.

So du = 0.

=> du = dw process the work done is zero.

Kshitiz said:   1 decade ago
If temperature of the gas changes then there will be some heat change or transfer, in that case how process will be adiabatic?

Naeem said:   7 years ago
Temperature will change only in form of work done by system (decrease in temp) , or work done on system (increase in temp).

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.


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