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. |
Given below are two statements:
Assertion (A): | At constant temperature, pV vs p plot for real gases is not a straight line. |
Reason (R): | At high pressure, all gases have Z>1 but at an intermediate pressure most gases have Z<1. |
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. |
Given below are two statements:
Assertion (A): | The temperature at which the vapor pressure of a liquid is equal to the external pressure is called boiling temperature. |
Reason (R): | At high altitudes atmospheric pressure is high. |
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. |
Given below are two statements:
Assertion (A): | Gases do not liquefy above their critical temperature, even on applying high pressure. |
Reason (R): | Above the critical temperature, the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed. |
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. |
Given below are two statements:
Assertion (A): | At the critical temperature, the liquid passes into a gaseous state imperceptible and continuously. |
Reason (R): | The density of the liquid and gaseous phase is equal to critical temperature. |
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. |