The heat and mechanical energies are mutually convertible. This statement was established by
The isothermal and adiabatic processes are regarded as
One molecule of oxygen consists of __________ atoms of oxygen.
A perpetual motion machine of the first kind is __________ according to first law of thermodynamics.
When a gas is heated, change takes place in
A close cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.
Which of the following statement is correct?
The molecular mass expresssed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of
One reversible heat engine operates betweenK and T2 K and another reversible heat engine operates between T2 K andK. If both the engines have the same heat input and output, then temperature T2 is equal to
The condition for the reversibility of a cycle is
In an extensive property of a thermodynamic system
The temperature at which the volume of a gas becomes zero is called
An open cycle gas turbine works on
Carnot cycle has maximum efficiency for
Stirling cycle consists of
In a free expansion process,
Select the wrong statement
The absolute zero pressure can be attained at a temperature of
The variables which control the physical properties of a perfect gas are
The heat and work are mutually convertible. This statement is called __________ law of thermodynamics.
The molecular mass of a substance is the number of times a molecule of that substance is heavier than the hydrogen atom.
A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called
Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules. This statement is called Avogadro's law.
One kg of carbon requires 8/3 kg of oxygen for its complete combustion and produces 11/3 kg of carbon dioxide gas.
To ensure complete and rapid combustion of a fuel, some quantity of air, in excess of the theoretical or minimum air is supplied.
The property of the system, whose value for the entire system is equal to the sum of their values for the individual parts of the system is called extensive property
Charles' law states that all perfect gases change in volume by __________ of its original volume atC for everyC change in temperature, when pressure remains constant.
The elements are made up of minute and chemically invisible particles as atoms.
All perfect gases change in volume by 1 / 273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
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