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WorksheetsPDMC CHEMISTRY GAS LAWS MCQs
Total questions: 21
Worksheet time: 16mins
At which temperature is the volume of a gas reduced to zero?
0K
00C
273K
2730C
Which scientist discovered the absolute scale of temperature?
Charles
Boyles
Kelvin
Gay lussac
At which temperature does a real gas behaves like an ideal gas?
At high pressure and low temperature
At low pressure and high temperature
At low pressure and low temperature
At high pressure and high temperature
The dimension of the universal gas constant is
ML2T-1N-1
ML-1T-1n-2K-1
ML2T-1n-2K
ML-1T-2n-1K-1
2 g of Hydrogen Gas, 28 g of Nitrogen Gas, 44 g of CO2 gas. Which of the following has the largest volume?
2g of Hydrogen gas
28g of Nitrogen gas
44g of CO2 gas
All gases have the same volume
Let the pressure P and volume V for a certain gas. If the pressure is increased by 25% at a constant temperature, then what would be the volume of the gas?
0.2V
0.75V
0.8V
0.8V
If the temperature is increased from 0 oC to 30 oC at a constant pressure of gas having fixed mass, then the ratio of initial and final volume will be?
91:101
91:100
91:111
91:121
At 22 degree Celsius a gas consists of pressure 1.1 bars then what is the temperature when the gas consists a pressure of 2.2 bars?
11 degree celsius
44 degree celsius
33 degree celsius
22 degree celsius
In Avogadro's law, volume is directly proportional to
pressure
number of moles
temperature
volume
If the pressure of a certain amount of gas is increased by 2 times, at a fixed temperature, then its final volume will become ________.
halved
doubled
one-fourth
tripled
The temperature of a given mass of a gas, at pressure P and volume V is 27°C. Find its pressure if its temperature is raised to 927°C, at constant volume
5P
4P
3P
2P
What is the compressibility factor for an ideal gas?
1
2
3
depends on the gas
A 5.00 L sample of N 2 is held at a pressure of 2.00 atm at 315 K. How many moles of N 2 are present in this sample?
2.59 moles
0.207 moles
0.387 moles
3.4 moles
If helium effuses through a porous barrier at a rate of 4.0 moles per minute, at what rate (in moles per minute) would oxygen gas diffuse?
0.2
0.4
0.87
1.41
At a total pressure of 10 atm, 56 g of nitrogen and 96 g of oxygen are mixed isothermally. The ratio of oxygen and nitrogen partial pressures is:
3:2
2:3
3:1
2:1
A mixture of gases contains 4.76 mole of Ne, 0.74 mole of Ar and 2.5 mole of Xe. Calculate the partial pressure of Neon, if the total pressure is 2 atm. at a fixed temperature.
1.12
1.17
1.18
1.19
An unknown gas diffuses at a rate of 0.5 time that of nitrogen at the same temperature and pressure. Calculate the molar mass of the unknown gas
111g/mol
112g/mol
113g/mol
114g/mol
Which of the following phenomenna lead to decrease in volume of a liquid in an open container?
Brownian motion
Diffusion
Evaporation
Sublimation
Which of the following gases are arranged in increasing order of diffusion rate? [H = 1 .0; C = 12; N = 14; O = 16; S = 32]
SO2, O2, NH3, H2
H2S,NH2,O2,SO2
CO2,N2O,O2,SO2
NH3,NO2,N2,CO2
If the pressure of a certain amount of gas is increased by 2 times, at a fixed temperature, then its final volume will become ________.
halved
doubled
one-fourth
tripled
At 22 degree Celsius a gas consists of pressure 1.1 bars then what is the temperature when the gas consists a pressure of 2.2 bars?
11 degree celsius
44 degree celsius
33 degree celsius
22 degree celsius
