Embibe Experts Solutions for Chapter: States of Matter: Gases and Liquids, Exercise 2: Exercise-2

Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at $27 °\mathrm{C}$ and contain $0.70$mole of ${\mathrm{H}}_2$ at $0.5 \mathrm{atm}$. One of the flasks is then immersed into a bath kept at $127 °\mathrm{C}$, while the other remains at $27 °\mathrm{C}$. The final pressure in each flask is:

Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at $27 °\mathrm{C}$ and contain $0.70$ moles of ${\mathrm{H}}_2$ at $0.5 \mathrm{atm}$. One of the flasks is then immersed into a bath kept at $127 °\mathrm{C}$, while the other remains at $27 °\mathrm{C}$. The number of moles of ${\mathrm{H}}_2$ in flask $1$ and flask $2$ are:

A spherical balloon of $21 \mathrm{cm}$ diameter is to be filled with hydrogen at NTP from a cylinder containing the gas at $20 \mathrm{atm}$ and $27°\mathrm{C}$. If the cylinder can hold $2.82$ litres of water at NTP, calculate the number of balloons that can be filled up.

At ${20}^{\circ }\mathrm{C},$ two balloons of equal volume and porosity are filled to a pressure of $2 \mathrm{atm},$ one with $14 \mathrm{kg} {\mathrm{N}}_2$ and other with $1 \mathrm{kg}$ of ${\mathrm{H}}_2$ balloon leaks to a pressure of $1/2 \mathrm{atm}$ in $1 \mathrm{hr},$ How long will it take for ${\mathrm{H}}_2$ balloon to reach a pressure of $1/2 \mathrm{atm}$?

Which of the following is/are correct?

Which of the following statements are correct?

The rate of diffusion of $2$ gases ${}^{\text{'}}\mathrm{A}^{\text{'}}$ and ${}^{\text{'}}\mathrm{B}^{\text{'}}$ are in the ratio $16:3$. If the ratio of their masses present in the mixture is $2:3$. Then,

If gas is allowed to expand at constant temperature then which of the following does not hold true: