Topic: States of Matter - Gases and Liquids, Test No.: 01, Total MCQs: 10
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Question 1 |
Maximum
deviation from ideal gas is expected from [NEET 2013]
H2(g) | |
N2(g) | |
CH4(g) | |
NH3(g) |
Question 2 |
If a gas expands at constant temperature, it indicates that:
Number of the molecules of gas increases | |
Kinetic energy of molecules decreases | |
Pressure of the gas increases | |
Kinetic energy of molecules remains the same |
Question 3 |
In a flask of
‘V’ litres, 0.2 moles of O2, 0.4 moles of N2, 0.1 moles
of NH3 and 0.3 moles of He gases are present at 27°C. If total
pressure exerted by these non-reacting gases is 1 atm, the partial pressure
exerted by N2 gas is
0.4 atm | |
0.3 atm | |
0.2 atm | |
0.1 atm |
Question 4 |
In order to
increase the volume of a gas by 10%, the pressure of the gas should be
increased by 10% | |
increased by 1% | |
decreased by 10% | |
decreased by 1% |
Question 5 |
In which one
of the following, does the given amount of chlorine exert the least pressure in
a vessel of capacity 1 dm3 at 273K?
0.071 g | |
0.0355 g | |
0.02 mole | |
6.023 × 1021 molecules |
Question 6 |
One mole of
oxygen at 273 k and one mole of sulphur dioxide at 546 k are taken in two separate
containers, then,
kinetic energy of O2 > kinetic energy of
SO2 . | |
kinetic energy of O2 < kinetic energy of
SO2. | |
kinetic energy of both are equal. | |
None of these |
Question 7 |
If 10–4
dm3 of water is introduced into a 1.0 dm3 flask at 300 K,
how many moles of water are in the vapour phase when equilibrium is
established?
(Given : Vapour pressure of H2O at 300 K is 3170 Pa; R = 8.314 J K–1 mol–1)
(Given : Vapour pressure of H2O at 300 K is 3170 Pa; R = 8.314 J K–1 mol–1)
1.27 × 10–3
mol | |
5.56 × 10–3
mol | |
1.53 × 10–2
mol | |
4.46 × 10–2
mol |
Question 8 |
In the
equation of state of an ideal gas PV = n RT, the value of the universal gas
constant would depend only on
the nature of the gas | |
the pressure of the gas | |
the units of the measurement | |
None of the above |
Question 9 |
In two
vessels of 1 L each at the same temperature 1 g of H2 and 1 g of CH4
are taken, for these
Vrms values will be same | |
kinetic energy per/mol will be same | |
total kinetic energy will same | |
pressure will be same |
Question 10 |
Which one of
the following statements is NOT true about the effect of an increase in
temperature on the distribution of molecular speeds in a gas?
The most probable speed increases | |
The fraction of the molecules with the most probable speed increases | |
The distribution becomes broader | |
The area under the distribution curve remains the same as under the lower temperature |
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