A gas at absolute temperature $300\,K$ has pressure $= 4 \times 10^{-10}\,N /m^2$  . Boltzmann constant, $k = 1.38 \times 10^{-23}\,J / K$ . The number of molecules per $cm^3$ is of the order of
  • A$100$
  • B$10^5$
  • C$10^8$
  • D$10^{11}$
Medium
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
    $PV$ versus $T$ graph of equal masses of ${H_2}$, $He$ and ${O_2}$ is shown in fig. Choose the correct alternative
    View Solution
  • 2
    A closed cylindrical vessel contains $N$ moles of an ideal diatomic gas at a temperature $T$. On supplying heat, temperature remains same, but $n$ moles get dissociated into atoms. The heat supplied is .........
    View Solution
  • 3
    Which one the following graphs represents the behaviour of an ideal gas
    View Solution
  • 4
    The molecules of a given mass of a gas have $r.m.s.$ velocity of $200 \,m s^{-1}$ at $27^o C$ and $1.0 \times 10^5 \,Nm^{-2}$ pressure. When the temperature and pressure of the gas are respectively, $127^o C$ and $0.05 \times 10^5 \,Nm^{-2},$ the $r.m.s.$ velocity of its molecules in $m s^{-1}$ is 
    View Solution
  • 5
    A mixture of ideal gases $7\,\, kg$ of nitrogen and $11 \,\,kg$ of $CO_2$. Then

    (Take $\gamma$ for nitrogen and $CO_2$ as $1.4$ and $1.3$ respectively)

    View Solution
  • 6
    In an ideal gas at temperature $T$, the average force that a molecule applies on the walls of a closed container depends on $T$ as ${T^q }$ . A good estimate for $q$ is 
    View Solution
  • 7
    A fix amount of nitrogen gas ($1$ mole) is taken and is subjected to pressure and temperature variation. The experiment is performed at high pressure as well as high temperatures. The results obtained are shown in the figures. The correct variation of $PV/RT$ with $P$ will be exhibited by
    View Solution
  • 8
    Under which of the following conditions is the law $PV = RT$ obeyed most closely by a real gas
    View Solution
  • 9
    For an ideal gas
    View Solution
  • 10
    If the intermolecular forces vanish away, the volume occupied by the molecules contained in $4.5 \,kg$ water at standard temperature and pressure will be
    View Solution