What is meant by payload?

  • A
    The mass of the gas inside the balloon
  • B
    The total mass of the balloon and the gas
  • C
    The difference between the mass of the air displaced by the balloon and the total mass of the balloon
  • D
    The mass of the air displaced by the balloon

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The atomic masses of carbon,nitrogen,and oxygen are $12, 14$,and $16$ respectively. Which of the following pairs of gases will diffuse at the same rate?

The ratio of rates of diffusion of gases $A$ and $B$ is $1 : 0.707$. If the molecular weight of $B$ is $32$,the molecular weight of $A$ is

Equal amounts of two gases of molecular weights $4$ and $40$ are mixed. The pressure of the mixture is $1.1 \ atm$. What will be the partial pressure of the lighter gas in the mixture (in $atm$)?

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