What is a $System$ in thermodynamics?
- A$A$ part of the universe chosen for thermodynamic study.
- BThe entire universe excluding the surroundings.
- CThe energy contained within a specific region of space.
- DThe boundary separating the universe from the surroundings.
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$A$ given mass of gas expands reversibly from the state $A$ to the state $B$ by three paths $1, 2$ and $3$ as shown in the figure. If $w_1, w_2$ and $w_3$ respectively be the work done by the gas along three paths then:
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View SolutionWhen $50 \ g$ of iron is dissolved in $HCl$ at $25 \ ^\circ C$ in a closed vessel,the work done is calculated to be ..... . The atmospheric pressure is $1 \ atm$. (in $J$)
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View SolutionEnthalpy $(H)$ is equal to
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View Solution$2$ moles of an ideal gas expands isothermally from $5$ $dm^3$ to $10$ $dm^3$ at a constant external pressure of $1.5$ bar. Calculate the work done.
Which among the following is $NOT$ a feature of a reversible process?
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