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Standard XII

Chemistry

Molar and Specific Heat Capacity

An ideal gas ...

Question

An ideal gas is taken from point A to point C on P-V diagram through two process AOC and ABC as shown in the figure. Process AOC is isothermal

Process AOC requires more heat than process ABC.

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Process ABC requires more heat than process AOC.

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Both process AOC & ABC require same amount of heat.

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Data is insufficient for comparison of heat requirement for the two processes.

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Solution

The correct option is A Process AOC requires more heat than process ABC.
$Δ$ U is the same in both the processes. But $W_{A O C}$ > $W_{A B C}$ (area under the curve)
Since Q = $Δ$ U + W from $\frac{I}{a w}$
$Q_{A O C}$ > $Q_{A B C}$

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Similar questions

Q. An ideal gas is taken from point A to point C on P-V diagram through two process AOC and ABC as shown in the figure . Process AOC is isothermic

Q. In the figure,

n

moles of a monoatomic ideal gas undergo the process

A B C

as shown in the

P - V

diagram. The process

A B

is isothermal and

B C

is isochoric. The temperature of the gas at

A

T_{0} .

Total heat given to the gas during the process

A B C

is measured to be

Q

Heat absorbed by the gas in the process

B C

Q. In the figure,

n

moles of a monoatomic ideal gas undergo the process

A B C

as shown in the

P - V

diagram. The process

A B

is isothermal and

B C

is isochoric. The temperature of the gas at

A

T_{0} .

Total heat given to the gas during the process

A B C

is measured to be

Q

Heat absorbed by the gas in the process

B C

P - V

diagram of an ideal gas for a process

A B C

is as shown in the figure. If the total heat absorbed or released by the gas during the process

A B C

is given by

H = - x P_{0} V_{0}

, what is the value of

x

Q. Two moles of an ideal mono-atomic gas is taken through a cyclic process as shown in the

P - T

diagram. In the process

B C, P T^{2}

= constant. Then the ratio of heat absorbed and heat released by the gas during the process

A B

and process

B C

respectively is:-

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An ideal gas is taken from point A to point C on P-V diagram through two process AOC and ABC as shown in the figure. Process AOC is isothermal

The correct option is A Process AOC requires more heat than process ABC.Δ U is the same in both the processes. But WAOC > WABC (area under the curve) Since Q = Δ U + W from Iaw QAOC > QABC

The correct option is A Process AOC requires more heat than process ABC.
$Δ$ U is the same in both the processes. But $W_{A O C}$ > $W_{A B C}$ (area under the curve)
Since Q = $Δ$ U + W from $\frac{I}{a w}$
$Q_{A O C}$ > $Q_{A B C}$