318812
What is the necessary condition for the existence of solids ?
1 Intermolecular forces should be weaker than thermal energy
2 Intermolecular forces should be stronger than thermal energy
3 Intermolecular forces should be equal to the thermal energy
4 No definite relationship between them
Explanation:
Intermolecular forces should be stronger than thermal energy for the existence of solids.
CHXII01:THE SOLID STATE
318813
Which of the following conditions favour the existence of a substance in the solid state?
1 Weak cohesive forces
2 High thermal energy
3 High temperature
4 Low temperature
Explanation:
At low temperature existence of a substance in solid state is due to (1) slow molecular motion and (2) strong cohesive forces These two forces hold the constituent particles together thus causes existence of substance in solid state.
NCERT Exemplar
CHXII01:THE SOLID STATE
318814
Assertion : Solid particles can move about their mean positions. Reason : Only one type of molecular motion, i.e., vibrational motion is there in solids.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
There is only one type of molecular motion, i.e., vibrational motion by virtue of which the solid particles can move about their mean positions.
318812
What is the necessary condition for the existence of solids ?
1 Intermolecular forces should be weaker than thermal energy
2 Intermolecular forces should be stronger than thermal energy
3 Intermolecular forces should be equal to the thermal energy
4 No definite relationship between them
Explanation:
Intermolecular forces should be stronger than thermal energy for the existence of solids.
CHXII01:THE SOLID STATE
318813
Which of the following conditions favour the existence of a substance in the solid state?
1 Weak cohesive forces
2 High thermal energy
3 High temperature
4 Low temperature
Explanation:
At low temperature existence of a substance in solid state is due to (1) slow molecular motion and (2) strong cohesive forces These two forces hold the constituent particles together thus causes existence of substance in solid state.
NCERT Exemplar
CHXII01:THE SOLID STATE
318814
Assertion : Solid particles can move about their mean positions. Reason : Only one type of molecular motion, i.e., vibrational motion is there in solids.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
There is only one type of molecular motion, i.e., vibrational motion by virtue of which the solid particles can move about their mean positions.
318812
What is the necessary condition for the existence of solids ?
1 Intermolecular forces should be weaker than thermal energy
2 Intermolecular forces should be stronger than thermal energy
3 Intermolecular forces should be equal to the thermal energy
4 No definite relationship between them
Explanation:
Intermolecular forces should be stronger than thermal energy for the existence of solids.
CHXII01:THE SOLID STATE
318813
Which of the following conditions favour the existence of a substance in the solid state?
1 Weak cohesive forces
2 High thermal energy
3 High temperature
4 Low temperature
Explanation:
At low temperature existence of a substance in solid state is due to (1) slow molecular motion and (2) strong cohesive forces These two forces hold the constituent particles together thus causes existence of substance in solid state.
NCERT Exemplar
CHXII01:THE SOLID STATE
318814
Assertion : Solid particles can move about their mean positions. Reason : Only one type of molecular motion, i.e., vibrational motion is there in solids.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
There is only one type of molecular motion, i.e., vibrational motion by virtue of which the solid particles can move about their mean positions.