Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 9)
9.
When the gas is heated at constant volume, the heat supplied increases the internal energy of the gas.
Discussion:
27 comments Page 1 of 3.
Rakesh Kumar Maurya said:
1 decade ago
Constant volume means, no work obtained by object because of volume change is not possible by internal energy change.
(1)
Prashant mohadikar said:
7 years ago
As the increase in heat and change in temperature at no change in volume, means there is no any work done. Therefore this supplied heat energy not use and will be present in the gas molecules as its internal energy. Thank you.
(1)
Nagesh said:
9 years ago
According to Maxwell's equation,
dU = TdS - PdV.
So at the constant volume dV = 0.
dU = TdS - PdV.
So at the constant volume dV = 0.
(1)
Manish said:
9 years ago
According to the first law of thermodynamics when the system undergoing a process, dq = du + W.
As we know work transfer is zero in constant volume process.
From above equation if W = 0, Implies Heat supplied = Internal Energy.
So, as you increase the heat supply proportionally internal energy also increases.
As we know work transfer is zero in constant volume process.
From above equation if W = 0, Implies Heat supplied = Internal Energy.
So, as you increase the heat supply proportionally internal energy also increases.
(1)
Uttam kumar said:
1 decade ago
Collision between the atoms also be responsible for increase in internal energy. If external energy are supplied.
Sumit ghosh said:
1 decade ago
From first law of thermodynamics,
dq= du + dw and dw = pdv.
At constant volume dw = 0.
So, dq = dw.
dq= du + dw and dw = pdv.
At constant volume dw = 0.
So, dq = dw.
Mani said:
1 decade ago
dq=dw+du, at constant volume dw=0.
So dq=du if dq increases then du also increases.
So dq=du if dq increases then du also increases.
DIMPU SAI KRISHNAN said:
1 decade ago
In constant volume processes, pressure is changing so temperature is also changing if temperature is changing internal energy also change because internal energy is a function of temperature only.
Dheeraj said:
10 years ago
dQ = dw+du;
Constant vol: w = 0 then,
dQ = du.
Constant vol: w = 0 then,
dQ = du.
Saurabh said:
10 years ago
If we burn anything in specific volume the temperature will be increased and heat supplied will also be.
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