Question # 1

The heat required to sublime one mole of the substance at standard temperature and pressure is called.

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Latest heat

Specific heat

Heat of sublimation

Heat capacity

Thermodynamics deals with

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Isolated systems

The interactions among various parts of the system

The microscopic behavior of a system

The interactions between system and surrounding

A sample of an ideal gas may i) energy adiabatically, or ii) Expand isothermally. the net flow of heat into the gas from the exterior is.

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Positive is each case

Negative for i) and positive for ii)

Zero for i) and positive for ii)

Positive for i) and negative for ii)

Which law states that two given samples of an ideal gas at the same temperature pressure and volume contain the same number of molecules.

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Charles law

Avogadro's

Boyles law

Boizmann law

A 4 kJ mass of copper of specific heat capacity of 400 J kg-1k-1 is heated for 160 s by a heater of power 200 W what is the rise in temperature.

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10 K

16 K

100 K

160 K

The specific heat of an ideal gas values as

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To

T1

T2

T3

Which of the following thermometers is the most suitable for measuring rapidly varying temperature.

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Thermocouple thermometer

Mercury in glass thermometer

Alcohol in glass thermometer

Platinum resistance thermometer

Which law states that a change in the internal energy of a closed thermodynamic system is equal to the difference between the heat supplied to the system and teh amount of work by the system on the surrounding.

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Zeroth law of thermodynamics

First law of thermodynamics

Second law of thermodynamics

Third law of thermodynamics

The process in which pressure of the system remains constant.

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Isothermal process

Isochoric process

Isobaric process

Adiabatic process

Most cooking involves

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Adiabatic process

Isothermal process

Isobaric process

Isochoric process

Mean free path in a gas is the

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Distance travelled by a molecule before hitting a wall

Average distance travelled by a molecule in one second

Average distance travelled between molecules between any two successive collisions

Root mean square velocity

Which of the following is a clinical thermometer.

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Gas thermometer

Mercury thermometer

Alcohol thermometer

Radiation thermometer

Which one is the primary standard for temperature measurement.

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Resistance thermometer

Mercury in glass thermometer

Constant volume gas thermometer

Pyrometer

The specific heat of liquid

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Decreases with temperature

Increases with temperature

Remains constant with change in temperature

Increases with pressure

During an adiabatic gas expansion the environment

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Serves as a heat sink

Serves as a heat source

Must be at a higher temperature than the gas

Does not have to participate

Which of the following in the best container for gas during adiabatic process.

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Copper vessel

Thermos flask

Glass container

Wooden container

The normal Human body temperature in Fahrenheit scale is.

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32 ^oF

40 ^oF

98.4^oF

212 ^oF

If the number of gas molecules in a cubical vessel is increase from N to 3 N then its pressure and total energy will be.

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Half

Three times

Double

Four times

On which parameter internal energy of an ideal gas depends upon.

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Volume

Mass

Pressure

Temperature

The gas thermometer is taken as the primary standard because.

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Thermometers are easily reproducible

Readings can be accurately taken

No correction are necessary

It produces he thermodynamic scale

When all the systems taking part in a process are included, the entropy.

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Decreases

Either remains constant of increases

Either remains constant or decreases

Remains constnat

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