Q. When a perfect gas is expanded through an aperture of minute dimensions, the process is known as

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Q. Steam coal is a

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Q. In a reversible adiabatic process, the ratio of T1/T2 is equal to

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Q. The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)

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Q. The atomic mass of nitrogen is __________ oxygen.

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Q. The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

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Q. In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

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Q. When gas is heated at constant pressure, the heat supplied is utilised in

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Q. The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called

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Q. When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is

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Q. The heat energy stored in the gas and used for raising the temperature of the gas is known as

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Q. A cycle consisting of two constant pressure and two isentropic processes is known as

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Q. When the gas is heated at constant pressure, the heat supplied

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Q. The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

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Q. A closed cycle gas turbine works on Joule's cycle.

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Q. The workdone in a free expansion process is zero.

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Q. When a system changes its state from one equilibrium state to another equilibrium state, then the path of successive states through which the system has passed, is known as

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Q. The fuel mostly used in blast furnace for extracting pig iron from iron ores is

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Q. The ultimate analysis of coal consists of the determination of the percentage of

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Q. The change of entropy, when heat is removed from the gas, is positive.

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