The RMS velocity ( $u_{\mathrm{rms}}$ ) of one mole of an ideal gas was measured at different temperatures and the following graph is obtained. What is the slope $(m)$ of straight line ?
$$ \begin{aligned} & \left(X \text {-axis }=T(\mathrm{~K}): Y \text {-axis }=\left(u_{\mathrm{rms}}\right)^2: M=\right.\text { molar mass : } \\ & R=\text { gas constant } \end{aligned} $$
Two statements are given below.
Statement I : Viscosity of liquid decreases with increase in temperature.
Statement II : The units of viscosity coefficient are pascal.
The correct answer is
Two statement are given below.
Statement I : The ratio of the molar volume of a gas to that of an ideal gas at constant temperature and pressure is called the compressibility factor.
Statement II : The rms velocity of a gas is directly proportional to square root of $T(\mathrm{~K})$.
The correct answer is