Short Answer Type
Long Answer TypeA gas cylinder containing cooking gas can withstand a pressure of 14.9 bar. The pressure gauge of the cylinder indicates 12 bar at 27°C. Due to sudden fire in the building, the temperature starts rising. At what temperature will the cylinder explode?
State Avogadro's law and prove that volume of gases at constant temperature and pressure is directly proportional to their number of moles.
Short Answer TypeTwo flasks A and B have equal to volumes. Flask A contains H2 and is maintained at 300K while the flask B contains an equal mass of CH4 gas and is maintained at 600K. Which flask contains a greater number of molecules ? How many times?
Long Answer TypeWith the help of Boyle's and Charle's laws, derive an expression for the ideal gas equation.
Short Answer TypeDerive the dimensions of the gas constant.
Or
What do you mean by the nature of universal consant R?
How much time would it take to distribute one Avogadro number of wheat grains, if 1010grains are distributed each second?
Long Answer TypeWrite the units of the gas constant R in different scales of measurement ?
The units of the gas constant (or numerical value) R in different scales of measurement may be calculated as follows:
1. In SI units:
One mole of a gas under standard conditions of temperature and pressure (STP or NTP) occupies a volume of 22·7L.
2. Under NTP condition (for one mole of the gas):One mole of any gas at 0°C (i.e. 273·15K.) and under 1 bar pressure occupies 22.7 L
According to ideal gas equation,
PV = nRT
Substituting the values, we have,
Short Answer TypeUsing the equation of state pV = nRT; show that at a given temperature density of a gas is proportional to gas pressure p.
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