In which of the following conditions, the distance between the molecules of hydrogen gas would increase?
(i) Increasing pressure on hydrogen contained in a closed container
(ii) Some hydrogen gas leaking out of the container
(iii) Increasing the volume of the container of hydrogen gas
(iv) Adding more hydrogen gas to the container without increasing the volume of the container
In which of the following conditions, the distance between the molecules of hydrogen gas would increase?
(i) Increasing pressure on hydrogen contained in a closed container
(ii) Some hydrogen gas leaking out of the container
(iii) Increasing the volume of the container of hydrogen gas
(iv) Adding more hydrogen gas to the container without increasing the volume of the container
The correct option is C (c) (ii) and (iii)
Explanation for correct answer
C) (ii) and (iii)
Intermolecular forces
- Intermolecular forces are the force mediate the interaction between two molecules.
- Example: Dipole-dipole interaction, hydrogen bonding etc.
According to the Universal gas law
Pressure is directly proportional to temperature and indirectly proportional to the volume of a closed container.
As per the options given,
- (ii) Some hydrogen gas leaking out of the container would accommodate more space so the distance between the molecules of hydrogen gas would increase, thus it is the correct answer.
- (iii)Increasing the volume of the container of hydrogen gas will impart more space to the hydrogen gas and bond distance may increase.
Hence, the correct answer is option c.
Explanation for Incorrect answers
(i) Increasing pressure on hydrogen contained in a closed container hydrogen gas will start compressing, this would decrease the distance between the molecules of hydrogen gas, Thus, this option is not possible.
(iv)Adding more hydrogen gas to the container without increasing the volume of the container would take the space of existing molecules, so the distance between the molecules of hydrogen gas would decrease. Thus, this statement is incorrect.
- Since statement (i) is incorrect, therefore, option a becomes incorrect.
- Both statements (i) and (iv) are incorrect, therefore option b is incorrect.
d. Since statement (iv) is incorrect, therefore, option d becomes incorrect.
(c) (ii) and (iii)
Explanation for correct answer
C) (ii) and (iii)
Intermolecular forces
- Intermolecular forces are the force mediate the interaction between two molecules.
- Example: Dipole-dipole interaction, hydrogen bonding etc.
According to the Universal gas law
Pressure is directly proportional to temperature and indirectly proportional to the volume of a closed container.
As per the options given,
- (ii) Some hydrogen gas leaking out of the container would accommodate more space so the distance between the molecules of hydrogen gas would increase, thus it is the correct answer.
- (iii)Increasing the volume of the container of hydrogen gas will impart more space to the hydrogen gas and bond distance may increase.
Hence, the correct answer is option c.
Explanation for Incorrect answers
(i) Increasing pressure on hydrogen contained in a closed container hydrogen gas will start compressing, this would decrease the distance between the molecules of hydrogen gas, Thus, this option is not possible.
(iv)Adding more hydrogen gas to the container without increasing the volume of the container would take the space of existing molecules, so the distance between the molecules of hydrogen gas would decrease. Thus, this statement is incorrect.
- Since statement (i) is incorrect, therefore, option a becomes incorrect.
- Both statements (i) and (iv) are incorrect, therefore option b is incorrect.
d. Since statement (iv) is incorrect, therefore, option d becomes incorrect.
