Gases & Solutions
States of Matter
Study the following graph and mark the incorrect statement following it.
- At zero volume all lines meet at . This temperature is known as absolute zero
- Each line of the volume vs temperature at constant pressure of graph is called isotherm
- All gases obey Charles' law at very low pressure and high temperature
- Pressure remaining constant, volume of a gas is directly proportional to its absolute temperature
Correct Answer: Option(b)
Solution: Isotherm -
A graph connecting two points having same temperature at a given time as an average over a given period.
In the given graph, Temperature is varying along the axis. Hence, it is not an isotherm.