5 problems on gas laws, please answer ALL problems, thank you! 1. Calculate the relative rate of diffusion of 1H2 (molar mass 2.0 g/mol) compared with 2H2 (molar mass 4.0 g/mol) and the relative rate of diffusion of O2 (molar mass 32 g/mol) compared with O3 (molar mass 48 g/mol). 2. Can the speed of a given molecule in a gas double at constant temperature? Explain your answer. 3. The distribution of molecular velocities in a sample of helium is shown in the picture attached below #5. If the sample is cooled, will the distribution of velocities look more like that of H2 or of H2O? Explain your answer. 4. A 1-L sample of CO initially at STP is heated to 546 K, and its volume is increased to 2 L. 5. Under which of the following sets of conditions does a real gas behave most like an ideal gas, and for which conditions is a real gas expected to deviate from ideal behavior? Explain. (a) high pressure, small volume (b) high temperature, low pressure (c) low temperature, high pressure
5 problems on
1. Calculate the relative rate of diffusion of 1H2 (molar mass 2.0 g/mol) compared with 2H2 (molar mass 4.0 g/mol) and the relative rate of diffusion of O2 (molar mass 32 g/mol) compared with O3 (molar mass 48 g/mol).
2. Can the speed of a given molecule in a gas double at constant temperature? Explain your answer.
3. The distribution of molecular velocities in a sample of helium is shown in the picture attached below #5. If the sample is cooled, will the distribution of velocities look more like that of H2 or of H2O? Explain your answer.
4. A 1-L sample of CO initially at STP is heated to 546 K, and its volume is increased to 2 L.
5. Under which of the following sets of conditions does a real gas behave most like an ideal gas, and for which conditions is a real gas expected to deviate from ideal behavior? Explain.
(a) high pressure, small volume
(b) high temperature, low pressure
(c) low temperature, high pressure
Note: I will answer Question1, 2 and 5 The diagram that you have provided is not the correct one to answer Question number 3. Please post right diagram along with right question later. Also Question 4 is not complete. What need's to b
a. Relative diffusion of 1H2 (molar mass 2.0 g/mol) compared with 2H2 (molar mass 4.0 g/mol) and the relative rate of diffusion of O2 (molar mass 32 g/mol) compared with O3 (molar mass 48 g/mol).
Ans: Molar mass of 1H2 = 2.0 g mol-1
Molar mass of 2H2 = 4.0 g mol-1
According to Graham's law of diffusion,
Rate of diffusion is inversely proportional to molar mass, i.e. Rate of diffusion (r) =
Hence,
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