Thermal Equilibrium and Temperature

A closed flask contains water in all its three states, solid, liquid and vapour at $\mathrm{}\mathrm{}\mathrm{}\mathrm{}0°C$ . In this situation, the average kinetic energy of water molecules will be

Initially, a beaker has $100 \mathrm{g}$ of water at temperature $90 °\mathrm{C}$. Later another $600 \mathrm{g}$ of water at temperature $20 °\mathrm{C}$ was poured into the beaker. The temperature, $T\left(\text{in} °\mathrm{C}\right)$ of the water after mixing is

A wire is made by attaching two segments together end to end. One segment is made of aluminium and the other is steel. The effective coefficient of linear expansion of the two segment wire is $19\times {10}^{-6} °{\mathrm{C}}^{-1}$. The fraction length of aluminium is $\frac{x}{11}$ then find $x$. (linear coefficients of thermal expansion of aluminium and steel are $23\times {10}^{-6} °{\mathrm{C}}^{-1}$ and $12\times {10}^{-6} °{\mathrm{C}}^{-1}$ respectively)

A metal rod is fixed rigidly at two ends so as to prevent its thermal expansion. If $L$, $\alpha$ and $Y$ respectively denote the length of the rod, coefficient of linear thermal expansion and Young’s modulus of its material, then for an increase in temperature of the rod by $∆T$, the longitudinal stress developed in the rod is

In romer scale, the boiling point of water is defined at _____ degrees.

 The _____ of the scale was originally set to the temperature of freezing brine.

In this scale, the zero was initially set using freezing brine.

What is a Romer scale?

In which of the following pairs of temperature scales, the size of the degree is identical?

The temperature which has same numerical value on Celsius and Fahrenheit scale is:

The temperature/s at which Centigrade thermometer and Kelvin thermometer gives the same reading is,

If volume occupied by ${\mathrm{CO}}_2$​ molecules is negligible, then what will be the pressure $\left(\frac{P}{5.277}\right)$ exerted by one mole of at $27°\mathrm{C}$ is $\left(\mathrm{a}=3.592 {\mathrm{L}}^2 {\mathrm{mol}}^{-2}\right)$.

Ice in a freezer is at $-7°\mathrm{C}.100 \mathrm{g}$ of this ice is mixed with $200 \mathrm{g}$ of water at $15°\mathrm{C}$. Take the freezing temperature of water to be $0°\mathrm{C}$, the specific heat of ice equal to $2.2 \mathrm{J}/\mathrm{g}°\mathrm{C},$ specific heat of water equal to$4.2 \mathrm{J}/\mathrm{g}°\mathrm{C}$ and the latent heat of ice equal to $335 \mathrm{J}/\mathrm{g}$.
Assuming no loss of heat to the environment, the mass of ice in the final mixture is closest to
 

 The volume thermal expansion coefficient of an ideal gas at constant pressure is

The most commonly used gas used in a constant pressure gas thermometer is:

Initially, a beaker has $100 \mathrm{g}$ of water at temperature $90 °\mathrm{C}$. Later another $600 \mathrm{g}$ of water at temperature $20 °\mathrm{C}$ was poured into the beaker. The temperature, $T$ of the water after mixing is

When a bimetallic strip is heated, it

A compressive force, F is applied at the two ends of a long thin steel rod. It is heated, simultaneously, such that its temperature increases by $\mathrm{\Delta }T$. The net change in its length is zero. Let $l$ be the length of the rod, A its area of cross-section, $Y$ its Young's modulus, and $\alpha$ its coefficient of linear expansion. Then, F is equal to:

The coefficient of linear expansion of crystal in one direction is ${\alpha }_1$ and that in every direction perpendicular to it is ${\alpha }_2$. The coefficient of cubical expansion is,

What is the change in the temperature on Fahrenheit scale and on Kelvin scale, if an iron piece is heated from $30 °\mathrm{C}$ to $90{ }^{\mathrm{o}}\mathrm{C}$.