Question Library

The ideal gas equation is satisfactory at the variables of a

Which of the following instruments uses the difference in temperature as a measure of the relative humidity?

What is the equivalent of 780 K in the Fahrenheit scale?

The volume of a fixed mass of gas at 0º C is 200 m\(^3\). What is its volume at 273º C at constant pressure?

What pressure would a 5000N weight of water exert at the bottom of a reservoir containing it if its length and breadth are 10m and 5m, respectively

Which of the following thermometer types best responds to a change in temperature

A gas is cooled at a constant pressure from 57ºC was observed to shrink one-fifth (1\5) of its original volume of 2.00cm\(^3\). Find its new temperature

A mercury-in-glass thermometer reads -20º at the ice point and 100º at the steam point. Calculate the Celsius temperature corresponding to 70º on the thermometer.

A brass rod is 2 m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100 K. (Take linear expansivity of brass as 1.8 × 10\(^{-5}\) K\(^{-1}\))

An air bubble of volume 2 cm\(^3\) is formed 20 m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10 m of water?

The pressure of a given mass of gas changes from 200 Nm\(^{-2}\) to 100 Nm\(^{-2}\), while its temperature drops from 127°C to -73°C. Calculate the ratio of the final volume of the gas to its initial volume.

The temperature of a glass vessel containing 100 cm\(^3\) of mercury is raised from 10°C to 100°C. Calculate the apparent cubic expansion of the mercury. (Real cubic expansivity of mercury = 1.8 × 10\(^{-4}\) K\(^{-1}\), Cubic expansivity of glass = 2.4 × 10\(^{-5}\) K\(^{-1}\))

A balloon containing 546 cm\(^3\) of air is heated from 0°C to 10°C. If the pressure is kept constant, what will be its volume at 10°C?

Pilots uses aneroid barometer to know the height above sea level because

A thick glass tumbler cracks when boiling water is poured into it because