Thermal Propert...

4200 J of work is required for

The temperature at which the vapour pressure of a liquid becomes equals to the external (atmospheric) pressure is its

When the pressure on water is increased the boiling temperature of water as compared to 100°C will be

A hammer of mass 1 kg having speed of 50 m/s, hit a iron nail of mass 200 gm. If specific heat of iron is 0.105 cal/gm°C and half the energy is converted into heat, the raise in temperature of nail is

A glass flask is filled up to a mark with 50 cc of mercury at 18°C. If the flask and contents are heated to 38°C, how much mercury will be above the mark ? (α for glass is 9 × 10^–6/0 C and coefficient of real expansion of mercury is 180 × 10^–6/°C)

The coefficient of apparent expansion of mercury in a glass vessel is 153 × 10^–6/°C and in a steel vessel is 144 × 10^–6/°C .If a for steel is 12 × 10^–6/°C, then that of glass is

An iron tyre is to be fitted on to a wooden wheel 1 m in diameter. The diameter of tyre is 6 mm smaller than that of wheel. The tyre should be heated so that its temperature increases by a minimum of (the coefficient of cubical expansion of iron is 3.6 × 10^–6 /°C

A glass flask of volume one litre at 0°C is filled, level full of mercury at this temperature. The flask and mercury are now heated to 100°C. How much mercury will spill out, if coefficient of volume expansion of mercury is 1.82 × 10^–4/°C and linear expansion of glass is 0.1 × 10^–4/°C respectively

A steel scale measures the length of a copper wire as 80.0 cm, when both are at 20°C (the calibration temperature for scale). What would be the scale read for the length of the wire when both are at 40°C ? (Given α_steel = 11 × 10^–6 per°C and α_copper = 17 × 10^–6 per° C)

Two metal strips that constitute a thermostat necessarily differ in their