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Mechanical Properties Of Fluids

Question

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A gas of heat capacity 1200J/kg absorbs 1500 cal of heat and does 6300 J of work. Find the increase in temperature of system.

Solution

Given here,
Heat $dQ equals 1500 space cal space equals space 6300 straight J$
Work done, $dW equals 6300 straight J$
According of first law of thermodynamics,
$dQ equals dU plus dW$
$rightwards double arrow$ $dU equals dQ minus dW equals 0$
Since increase in internal energy of gas is zero, therefore increase in temperature is also zero.

Some More Questions From Mechanical Properties of Fluids Chapter

Define heat capacity.

What are the units of heat capacity?

Define Dulong and Pettit’s law of specific heat.

Who explained the correct variation of specific heat with temperature in the lower range of temperature?

Do the gases have only one value of specific heat?

What is thermometry?

Define temperature.

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