Gases possess characteristic critical temperature which depends upon the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.
Gases | H2 | He | O2 | N2 |
The critical temperature in Kelvin | 33.2 | 5.3 | 154.3 | 126 |
From the above data, the order of liquefaction of the given gases is-
(write the order from the gas liquefying first)
1.
2.
3.
4.
The SI unit of viscosity coefficient is-
1. Pascal
2. Nsm-2
3. km-2s
4. Nm-2
Atmospheric pressure recorded in different cities are as follows
Cities | p in N/m2 |
Shimla | |
Bangalore | |
Delhi | |
Mumbai |
The liquid will boil first at -
1. Shimla
2. Bangalore
3. Delhi
4. Mumbai
In the given figure, the curve representing an ideal gas is-
1. B only
2. C and D only
3. E and F only
4. A and B only
Increase in kinetic energy can overcome intermolecular forces of attraction. How will increase in temperature effect the viscosity of liquid-
1. Increase
2. No effect
3. Decrease
4. No regular pattern will be followed
With increase in temperature the surface tension of a liquid will:
1. Remains same
2. Decreases
3. Increases
4. No regular pattern is followed
Match the graphs between the following variables with their names.
Graphs |
Names |
A. Pressure vs temperature graph at constant molar volume |
1. Isotherms |
B. Pressure vs |
2. Constant temperature Curve |
C. Volume vs temperature graph at constant pressure. |
3. Isochores |
4. Isobars |
Codes
Options: | A | B | C |
1. | 3 | 1 | 4 |
2. | 1 | 2 | 3 |
3. | 5 | 4 | 3 |
4. | 4 | 5 | 3 |
Match the following gas law with the equation representing them.
A. Boyle’s law |
1. at constant T and p |
B. Charle’s law |
2. …constant T,V |
C. Dalton’s law |
3. constant |
D. Avogadro’s law |
4. at constant n and p |
5. at constant n and T |
Codes
Options: | A | B | C | D |
1. | 5 | 4 | 2 | 1 |
2. | 3 | 4 | 2 | 1 |
3. | 5 | 4 | 3 | 2 |
4. | 4 | 5 | 3 | 2 |
Match the following graphs of an ideal gas with their coordinates.
Graphical representation |
X and Y coordinates |
A. |
1. pV vs V |
B. |
2. p vs V |
C. |
3. p vs |
Codes
Options: | A | B | C |
1. | 2 | 3 | 1 |
2. | 1 | 2 | 3 |
3. | 3 | 2 | 1 |
4. | 1 | 3 | 1 |
Given below are two statements:
Assertion (A): | Three states of matter are the result of a balance between intermolecular forces and the thermal energy of the molecules. |
Reason (R): | Intermolecular forces tend to keep the molecules together but the thermal energy of molecules tends to keep them apart. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |