Two moles of helium gas are taken over the cycle $ABCDA$, as shown in the $P-T$ diagram. Assuming the gas to be ideal the work done on the gas in taking it from $A $ to $B$ is ...... $R$
AIEEE 2009, Medium
Download our app for free and get startedPlay store
$A$ to $B$ is an isobaric process. The work done

$W = nR\left( {{T_2} - {T_1}} \right) = 2R\left( {500 - 300} \right) = 400R$

art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    By opening the door of a refrigerator placed inside a room you
    View Solution
  • 2
    The internal energy change in a system that has absorbed $2 \;k cal$ of heat and done $500 \;J $ of work is ...... $J$
    View Solution
  • 3
    An ideal gas of density $\rho=0.2 kg m ^{-3}$ enters a chimney of height $h$ at the rate of $\alpha=0.8 kg s ^{-1}$ from its lower end, and escapes through the upper end as shown in the figure. The cross-sectional area of the lower end is $A_1=0.1 m ^2$ and the upper end is $A_2=0.4 m ^2$. The pressure and the temperature of the gas at the lower end are $600 Pa$ and $300 K$, respectively, while its temperature at the upper end is $150 K$. The chimney is heat insulated so that the gas undergoes adiabatic expansion. Take $g=10 ms ^{-2}$ and the ratio of specific heats of the gas $\gamma=2$. Ignore atmospheric pressure.

    Which of the following statement($s$) is(are) correct?

    View Solution
  • 4
    A system performs work $\Delta W$ when an amount of heat is$\Delta Q$ added to the system, the corresponding change in the internal energy is $\Delta U$. A unique function of the initial and final states (irrespective of the mode of change) is
    View Solution
  • 5
    In a thermodynamics process, pressure of a fixed mass of a gas is changed in such a manner that the gas releases $20\,J$ of heat and $8\,J$ of work is done on the gas. If the initial internal energy of the gas was $30\,J$. The final internal energy will be...... $J$
    View Solution
  • 6
    Answer the following by appropriately matching the lists based on the information given in the paragraph.

    In a thermodynamics process on an ideal monatomic gas, the infinitesimal heat absorbed by the gas is given by $T \Delta X$, where $T$ is temperature of the system and $\Delta X$ is the infinitesimal change in a thermodynamic quantity $X$ of the system. For a mole of monatomic ideal gas

    $X=\frac{3}{2} R \ln \left(\frac{T}{T_A}\right)+R \ln \left(\frac{V}{V_A}\right)$. Here, $R$ is gas constant, $V$ is volume of gas, $T_A$ and $V_A$ are constants.

    The $List-I$ below gives some quantities involved in a process and $List-II$ gives some possible values of these quantities.

    List-$I$ List-$II$
    $(I)$ Work done by the system in process $1 \rightarrow 2 \rightarrow 3$ $(P)$ $\frac{1}{3} R T_0 \ln 2$
    $(II)$ Change in internal energy in process $1 \rightarrow 2 \rightarrow 3$ $(Q)$ $\frac{1}{3} RT _0$
    $(III)$ Heat absorbed by the system in process $1 \rightarrow 2 \rightarrow 3$ $(R)$ $R T _0$
    $(IV)$ Heat absorbed by the system in process $1 \rightarrow 2$ $(S)$ $\frac{4}{3} RT _0$
      $(T)$ $\frac{1}{3} RT _0(3+\ln 2)$
      $(U)$ $\frac{5}{6} RT _0$

    If the process carried out on one mole of monatomic ideal gas is as shown in figure in the PV-diagram with $P _0 V _0=\frac{1}{3} RT _0$, the correct match is,

    $(1)$$I \rightarrow Q, II \rightarrow R , III \rightarrow P , IV \rightarrow U$

    $(2)$ $I \rightarrow S , II \rightarrow R , III \rightarrow Q , IV \rightarrow T$

    $(3)$ $I \rightarrow Q , II \rightarrow R , III \rightarrow S , IV \rightarrow U$

    $(4)$ $I \rightarrow Q , II \rightarrow S , III \rightarrow R , IV \rightarrow U$

    ($2$) If the process on one mole of monatomic ideal gas is an shown is as shown in the $TV$-diagram with $P _0 V _0=\frac{1}{3} RT _0$, the correct match is

    $(1)$ $I \rightarrow S, II \rightarrow T, III \rightarrow Q , IV \rightarrow U$

    $(2)$ $I \rightarrow P , II \rightarrow R, III \rightarrow T , IV \rightarrow S$

    $(3)$ $I \rightarrow P, II \rightarrow, III \rightarrow Q, IV \rightarrow T$

    $(4)$ $I \rightarrow P, II \rightarrow R, III \rightarrow T, IV \rightarrow P$

    Give the answer or quetion $(1)$ and $(2)$

    View Solution
  • 7
    $Q$ amount of heat is given to $0.5\  mole$ of an ide al mono-atomic gas by a process $TV^n$  constant. Following graph shows variation of temperature with $Q$ . Find value of $n$.
    View Solution
  • 8
    One mole of an ideal gas is taken through an adiabatic process where the temperature rises from $27^{\circ} {C}$ to $37^{\circ} {C}$. If the ideal gas is composed of polyatomic molecule that has $4$ vibrational modes which of the following is true?
    View Solution
  • 9
    In the following indicator diagram, the net amount of work done will be
    View Solution
  • 10
    A Camot cycle consists of
    View Solution