Q. Boyle's law for gases states that

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Q. 1st law of thermodynamics is nothing but the law of conservation of

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Q. A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect ?

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Q. In a working refrigerator, the value of COP is always

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Q. __________ increases with increase in pressure.

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Q. A refrigerator may be termed as a

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Q. For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

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Q. The number of degrees of freedom for an azeotropic mixture in a two component vapour-liquid equilibria is/are

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Q. Any substance above its critical temperature exists as

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Q. Which of the following decreases with increase in pressure ?

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Q. Isentropic process means a constant __________ process.

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Q. In case of steady flow compression polytropic process (PVⁿ = constant), the work done on air is the lowest, when

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Q. A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.

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Q. For a real gas, the chemical potential is given by

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Q. At absolute zero temperature, all substances have the same

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Q. Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in

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Q. Pick out the correct statement.

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Q. Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be

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Q. The thermodynamic law, PVʸ = constant, is not applicable in case of

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Q. When a gas in a vessel expands, its internal energy decreases. The process involved is

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