Gases & Solutions
States of Matter
V vs T curves at different pressures P1 and P2 for an ideal gas shown below. Which one of the following is correct?
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Which of the following is correct option for the free expansion of an ideal gas under adiabatic condition ?
What is the value of the absolute zero of temperature on their temperature scale?
When an ideal gas undergoes unrestrained expansion, no cooling occurs because the molecules
Calculate the total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 dm3 at 27 ∘C. (R = 0.083 bar dm3 K−1 mol−1)
If 3.7g of a gas at 25∘C occupies the same volume as 0.814g of hydrogen at 17∘C and at the same pressure, then what is the molecular weight of the gas?
The rate of diffusion of methane at a given temperature is twice that of a gas X. The molecular weight of X is
Assuming ideal gas behaviour, how many atoms of Ar are contained in a typical human breath of 0.5 litre at 1.0 bar and 37oC? Air consists of 1% Ar atoms. Assuming that the argon atoms from the last breath of Plato have been distributed randomly throughout the atmosphere (5×1018m3), how long would it take to breathe one of these atoms? A typical adult breath rate is 10min−1.