Calculate the fall in temperature of helium initially at `15^@C`, when it is suddenly expanded to 8 times its volume. (y= 5/3)

If , at 50^@C and 75 cm of mercury prssure , a definite mass of a gas is compressed suddenly, then what will be the final pressure and temperature of the gas in each case if the final volume is one - fourth of the initial volume ? (y = 1.5)

If , at 50^@C and 75 cm of mercury prssure , a definite mass of a gas is compressed slowly, then what will be the final pressure and temperature of the gas in each case if the final volume is one - fourth of the initial volume ? (y = 1.5)

One mole of an ideal gas is initially kept in a cylinder with a movable frictionless and massless piston at pressure of 0.1 mPa and temperature 27^@C . It is then expanded till its volume is doubled. How much work is done if the expansion is isobaric ?

A liquid is in equilibrium with its vapour in a sealed container at a fixed temperature.The volume of the container is suddenly increased. What is the initial effect of the change on vapour presssure?

The temperature at which the velocity of sound in air will be 1.5 times its velocity at 0^@C is

When the temperature of an ideal gas is increased by 600 K, the velocity of sound in the gas becomes sqrt 3 times the initial velocity in it. The initial temperature of the gas is

If temperature of water is lowered form 4^@C to 3^@C its volume_____

An aluminium rod and iron rod show 1.5 m difference in their lengths when heated at all temperature. What are their lengths at 0 ^@C if coefficient of linear expansion for aluminium is 24.5 xx 10^-6 //^@C and for iron is 11.9 xx 10^-6 //^@C

An aluminium rod and iron rod show 1.5 m difference in their lengths when heated at all temperature. What are their lengths at 0^@ C if coefficient of linear expansion for aluminium is 24.5 xx 10^(-6) //""^@C and for iron is 11.9 xx 10^(-6) //""^@ C