Thermodynamic Process

Heat absorbed by a system in going through a cyclic process shown in figure is :

What is the meaning of adiabatic expansion?

One mole of an ideal gas undergoes two different cyclic processes $\mathrm{I}$ and $\mathrm{II}$, as shown in the $P-V$ diagrams below. In cycle $\mathrm{I}$, processes $a, b, c$ and $d$ are isobaric, isothermal, isobaric and isochoric, respectively. In cycle $\mathrm{II}$, processes $a\text{'}, b\text{'}, c\text{'}$ and $d\text{'}$ are isothermal, isochoric, isobaric and isochoric, respectively. The total work done during cycle $\mathrm{I}$ is $W_{\mathrm{I}}$ and that during cycle $\mathrm{II}$ is $W_{\mathrm{II}}$. The ratio $\frac{W_{\mathrm{I}}}{W_{\mathrm{II}}}$ is _____.

A closed container contains a homogeneous mixture of two moles of an ideal monatomic gas $\left(\gamma =\frac{5}{3}\right)$ and one mole of an ideal diatomic gas $\left(\gamma =\frac{7}{5}\right)$. Here, $\gamma$ is the ratio of the specific heats at constant pressure and constant volume of an ideal gas. The gas mixture does a work of $66$ Joule when heated at constant pressure. The change in its internal energy is _____ Joule.

The initial pressure and volume of an ideal gas are$P_0$ and $V_0$. The final pressure of the gas when the gas is suddenly compressed to volume$\frac{V_0}{4}$ will be:

(Given $\gamma$= ratio of specific heats at constant pressure and at constant volume.)

A thermodynamic system is taken through cyclic process. The total work done in the process is :

Consider two containers $A$ and $B$ containing monoatomic gases at the same Pressure $\left(P\right)$, Volume $\left(V\right)$ and Temperature $\left(T\right)$. The gas in $A$ is compressed isothermally to $\frac{1}{8}$ of its original volume while the gas in $B$ is compressed adiabatically to $\frac{1}{8}$ of its original volume. The ratio of final pressure of gas in $B$ to that of gas in $A$ is

A gas is compressed adiabatically, which one of the following statement is NOT true?

A mixture of gases with adiabatic coefficient equal to $\frac{3}{2}$ is compressed from initial state $(P_0, V_0)$ to one fourth volume adiabatically. Its final pressure will be equal to

A sound wave is travelling in a uniform pipe with gas of adiabatic exponent $\gamma$. If $u$ is the particle velocity at any point in medium and $c$is the wave velocity, then relative change in pressure $\frac{dP}{P}$ through this point is :-

An ideal gas is compressed such that its pressure $P$ and volume $V$ are related as $PV{ }^2$= constant. During this process, the temperature of gas

In which of the following process, the internal energy of gas remains constant?

A monoatomic gas initially at pressure $P$ and volume $V$ is compressed to ${\frac{1}{8}}^{\mathrm{th}}$ of its volume adiabatically. Final pressure of the gas is equal to

 The final volume (in $L$) of one mole of an ideal gas initially at $27°\mathrm{C}$ and $8.21$ $\mathrm{atm}$ pressure, if it absorbs $420 \mathrm{cal}$ of heat during a reversible isothermal expansion, is

The work done by gas is equal to heat supplied. An ideal gas has initial volume $V$ and pressure $P.$ To triple its volume the minimum work done, will be

 

 Following graph shows a single stage expansion process, then work done by the system is ?

  Select the correct option regarding adiabatic expansion of an ideal gas.

A closed gas cylinder is divided into two parts by a piston held tight. The pressure and volume of gas in two parts respectively are $(P, 5V)$ and $(10P, V)$. If now the piston is left free and the system undergoes isothermal process, then the volume of the gas in two parts respectively are

A monoatomic gas does $100 \mathrm{J}$ of work when it is expanded isobarically. How much of heat is given to the gas in the process

A gas is expanded from an initial state to a final state along a path on a $P-V$ diagram. The path consists of (i) an isothermal expansion of work $50 \mathrm{J}$, (ii) an adiabatic expansion and (iii) an isothermal expansion of work $20 \mathrm{J}$. If the internal energy of gas is changed by $-30 \mathrm{J}$, then the work done by gas during adiabatic expansion is