The volume and mass of an iron ball at `30^@C` are `100 cm^3` and 7.8 kg respectively. What will be its volume and density at `100^@C`? `alpha` for iron =`1.2xx10^-5"^@C^-1`.

If the volume and density of 5g of pure iron sample are 'V' and 'd' respectively then what will be the volume and density of 10 g of the same sample?

The volume and mass of a piece of iron-aluminium alloy are 100cm^(3) and 588 g respectively. The specific gravities of iron and aluminium are 8 and 2.7 respectively. Calculate the ratio of the volumes of iron and aluminium on the alloy.

A closed glass bulb contains some mercury. Volumes of the empty space of the bulb at 0^(@)C " and " 40^(@)C are 1 cm^(3) and 0.98 cm^(3) respectively. Determine the volume of mercury. Assume that alpha for glass =7.2 times 10^(-6@)C^(-1) " and " gamma for mercury =1.81 times 10^(-4@)C^(-1) .

If at 0^@C the volume of certain mass gas at constant pressure be V_0 . What will be its volume at 4^@C ?

Diameter of a brass disc at 30^(@)C is 10 cm. What will be the increase in area of the disc at 70^(@)C ? alpha for brass =18 times 10^(-6@)C^(-1) .

The lengths of an iron and a zinc rod at 0^(@)C are 25.55 cm and 25.5 cm respectively. At what temperature will their lengths be equal? Coefficients of linear expansion of iron and zinc are 10 times 10^(-6@)C^(-1) and 30 times 10^(-6@)C^(-1) respectively.

At 100^(@)C and 1 atm pressure, the densities of water and water and water vapour are 1.0 g*mL^(-1) and 0.0006 g*mL^(-1) respectively. What is the total volume of water molecules in 1 litre of steam at 100^(@)C ?

A steel is 1.5 m long at 20^(@)C . What will be the increase in its length if it is heated up to 100^(@)C?" "alpha for steel =11 times 10^(-6@)C^(-1) .

A brass rod has a length of 150 cm at 40^(@)C . What will be its length at 100^(@)C ? The coefficient of linear expansion of brass is 18 times 10^(-6@)C^(-1) .

The volume of a given mass of dry gas at 15^(@) is 100cm^(3) . At what temperature the volume of the gas will be 125cm^(3) , keeping pressure constant.