Match the following (A) Isothermal process (i) q = ∆ U (B) Adiabatic process (ii) W = - P × ΔV (C) Isobaric process (iii) W = ∆ U (D) Isochoric process (iv) W = - nRTln V f V i

A - iv , B - iii , C - ii , D - i

A - iii , B - iv , C - i , D - ii

A - i , B - ii , C - iii , D - iv

A - ii , B - i , C - iv , D - iii

EASY

Earn 100

Define boundary in thermodynamics.

Important Questions on Thermodynamics

MEDIUM

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

What will be the heat change at constant volume fo the reaction whose heat change at constant pressure is

- 560 kcal

27 ° C ?

The reaction is:

C_{8} H_{16} + 12 O_{2} \to 8 {CO}_{2} + 8 H_{2} O

(Given

R = 2 {calmol}^{- 1} K^{- 1})

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

Identify the correct set of intensive properties from the following

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

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

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

Which of the following is not an intensive property?

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

An ideal gas is allowed to expand from

1 L

10 L

against a constant external pressure of

1

bar. The work done in

k J

is:

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

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

MEDIUM

Chemistry>Physical Chemistry>Thermodynamics>Terminology 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

MEDIUM

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

92 g Na

reacts with water in open vessel at

300 K

. What is the value of work done? [Assume ideal nature of the gaseous product]

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

For one mole of an ideal gas, which of these statements must be true?
(a) Internal energy

(U)

and enthalpy

(H)

each depends on temperature.
(b) Compressibility factor

Z

is not equal to 1
(c)

C_{P, m} - C_{V, m} = R

(d)

dU = C_{v} dT

for any process

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology 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>Thermodynamics>Terminology in Thermodynamics

Consider a cyclic process

P \to Q \to R \to P

for a system. Among the following, the combination of steps that can never lead to this cyclic process is

MEDIUM

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

5

moles of an ideal gas at

100 K

are allowed to undergo reversible compression till its temperature becomes

200 K .

C_{V} = 28 J K^{- 1},

calculate

∆ U

and

∆ p V

for the process.

(R = 8.0 J K^{- 1} m o l^{- 1})

EASY

Chemistry>Physical Chemistry>Thermodynamics>Terminology 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>Thermodynamics>Terminology in Thermodynamics

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

HARD

Chemistry>Physical Chemistry>Thermodynamics>Terminology in Thermodynamics

Match the following

(A)	Isothermal process	(i)	$q = ∆ U$
(B)	Adiabatic process	(ii)	$W = - P \times ΔV$
(C)	Isobaric process	(iii)	$W = ∆ U$
(D)	Isochoric process	(iv)	$W = - nRTln (\frac{V_{f}}{V_{i}})$