Why Zero Question 1 Zeroth law is more fundamental than other two laws of thermodynamics and it is formulated long after first and second laws of thermodynamics were stated. So it is called Zeroth. True False Feedback True R.H. Fowler formulated this law in 1931
Importance of Zeroth Law The zeroth law is incredibly important as it allows us to define the concept of a Cloze (1): JXUwMDJjJXUwMDExJXUwMDA4JXUwMDFkJXUwMDE1JXUwMDE3JXUwMDEzJXUwMDE1JXUwMDAxJXUw MDA3JXUwMDE3 scale Enable JavaScript The zeroth law is a consequence of thermal equilibrium. Temperature is a well defined physical quantity
Condition for thermal equilibrium There is a thermodynamic variable whose value is equal for two systems in thermal equilibrium is called Cloze (1): volumepressure temperature JXUwMDJjJXUwMDExJXUwMDA4JXUwMDFkJXUwMDE1JXUwMDE3JXUwMDEzJXUwMDE1JXUwMDAxJXUwMDA3JXUwMDE3 Enable JavaScript Macroscopic variables do not change in time during thermal equilibrium
Thermal equilibrium and Macroscopic variables Question If two objects are in thermal equilibrium then they will have same temperature and hence they will have same .......... Answers Option 1 Kinetic Energy Option 2 Pressure Option 3 Volume Feedback Correct , KE is proportional to temperature Wrong, Pressure needs to be a constant only Wrong, Volume needs to be a constant only Solution Correct Option (Feedback) Wrong (Feedback) Wrong (Feedback)