MCQs are made in such a way that no important aspect is missed out. Any student taking a test and getting more than 90% marks will surely get similar marks in board exam. Collision among gas molecules themselves and with the walls of the container are assumed to be perfectly inelastic? No heat engine can be more efficient than a carnot engine operating between the same two temperature? A heat engine is a device which converts a part of thermal energy into work?
Pressure exerted by the gas is directly proportional to the average translation K? E of the gas molecules? What is the average translational K? E of molecules in a gas at temperature 270C?All real heat engines are less efficient than carnot engine due to? The curve representing an adiabatic process is called an? Molecules do not exert force on each other except during a ……………? Energy transforming process that occur with in an organism are named as …………
The sum of all forms of energy present in thermodynamics system is called its ………… energy? For the working of heat engine there must be a source of heat at a ………? temperature and sink at ………? temperature to which heat may be expelled? There is no perpetual motion machine that can convert the given amount of heat completely into ……………? Write down three examples of adiabatic process? The efficiency of real heat engine is less than carnot engine? Why the efficiency of carnot engine is less than 100%? Give reasonsWhy we reduce pressure in the tyre while moving on motorway?