What will be the pressure of the gaseous mixture when $0.5 \, L$ of $H_{2}$ at $0.8 \, bar$ and $2.0 \, L$ of dioxygen at $0.7 \, bar$ are introduced in a $1 \, L$ vessel at $27^{\circ} C$ (in $, bar$)?

Choose the incorrect statement from the following:

Which one of the following equations represents the variation of viscosity coefficient $(\eta)$ with temperature $(T)$?

Based on the given figure,the number of correct statement/s is/are $........$.
$A.$ Surface tension is the outcome of equal attractive and repulsion forces acting on the liquid molecule in bulk.
$B.$ Surface tension is due to uneven forces acting on the molecules present on the surface.
$C.$ The molecule in the bulk can never come to the liquid surface.
$D.$ The molecules on the surface are responsible for vapour pressure if the system is a closed system.

Which of the following sets consists of gases with the same rate of diffusion?

For one mole of an ideal gas,increasing the temperature from $10^{\circ} C$ to $20^{\circ} C$: