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Identify the extensive property amongst the following.

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Important Questions on Chemical Thermodynamics

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Among the following, the extensive variables are

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Which of the following options is an intensive property of a system?

MEDIUM

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

When

5

moles of

He

gas expand isothermally and reversibly at

300 K

from

10

litres to

20

litres, the magnitude of the maximum work obtained in

J

is . [nearest integer ] (Given :

R = 8.3 J K^{- 1} {mol}^{- 1}

and

\log 2 = 0.3010

)

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Among the following the number of state variable is

Internal energy $(U)$

Volume $(V)$

Heat $(q)$

Enthalpy $(H)$

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Identify the correct set of intensive properties from the following

HARD

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Three separate reversible processes

(1, 2 and 3)

are carried out with

1

mole of an ideal gas initially at STP. In these processes, the pressure (

P

) is measured while increasing any one of the quantities volume (

V

), temperature (

T

) and number of moles

(n)

, keeping the other two constant. Plots of

P (atm)

versus

X

are found to be linear, where

X = n

T (K)

1 / V ({lit}^{- 1})

. For the processes

1, 2

and

3

, the numerical values of the slopes

m_{1}, m_{2}

and

m_{3}

of the

P

versus

X

plots are found to follow the order

m_{1} > m_{2} > m_{3}

, respectively. The correct statement(s) about these processes is/are

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Which of the following is not an intensive property?

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Calculate the work done during compression of

2

mol of an ideal gas from a volume of

1 m^{3}

10

{dm}^{3}

300 K

against a pressure of

100 kPa

MEDIUM

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

During a reversible adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio

\frac{C_{p}}{C_{V}}

for the gas is

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

For an adiabatic change in a system, the condition which is applicable will be

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Observe the following properties:

Volume, enthalpy, density, temperature, heat capacity, pressure, internal energy.

The number of extensive properties in the above list is

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

In a closed insulated container, a liquid is stirred with a paddle to increase its temperature. In this process, which of the following is true?

MEDIUM

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

The total number of intensive properties from the following is...........
Volume, Molar heat capacity, molarity, $E_{cell}^{o}$ ,Gibbs free energy change, Molar mass, Mole

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Write features of reversible process.

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Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Define:
Reversible process

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

A gas can expand from

100 mL

250 mL

under a constant pressure of

2 atm

. The work done by gas is

MEDIUM

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

An ideal gas in a thermally insulated vessel at internal pressure =

P_{1}

, volume =

V_{1}

and absolute temperature =

T_{1}

expands irreversibly against zero external pressure, as shown in the diagram. The final internal pressure, volume and absolute temperature of the gas are

P_{2}

V_{2}

and

T_{2}

, respectively. For this expansion,

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EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Thermodynamic properties are divided into two broad types: intensive properties and extensive properties. Which of the following is NOT an intensive property?

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Which of the following is NOT an intensive property?

EASY

Chemistry>Physical Chemistry>Chemical Thermodynamics>Basic concepts in thermodynamics

Among the following, the set of parameters that represents path functions, is:
i)

q + w

ii)

q

iii)

w

iv)

H - T S

Identify the extensive property amongst the following.

Important Questions on Chemical Thermodynamics

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