CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

A system is said to be isopiestic, if there is no __________ change.

Volume

Temperature

None of these

Pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Entropy change for an irreversible isolated system is

> 0

∞

< 0

TRUE ANSWER : ?
YOUR ANSWER : ?

In an adiabatic process, the

Heat transfer is zero

Work done is a path function

Temperature change is zero

Enthalpy remains constant

TRUE ANSWER : ?
YOUR ANSWER : ?

The first law of thermodynamics is a statement of conservation of

Energy

Work

Momentum

Heat

TRUE ANSWER : ?
YOUR ANSWER : ?

In a reversible process

DE - dW = Tds

Tds = dE + dW

DW - dE = Tds

Tds - dW + dE >0

TRUE ANSWER : ?
YOUR ANSWER : ?

During Joule-Thomson expansion of gases

Temperature remains constant

Enthalpy remains constant

None of these

Entropy remains constant

TRUE ANSWER : ?
YOUR ANSWER : ?

A large iceberg melts at the base, but not at the top, because of the reason that

The iceberg remains in a warmer condition at the base

All of these

Due to the high pressure at the base, its melting point reduces

Ice at the base contains impurities which lowers its melting point

TRUE ANSWER : ?
YOUR ANSWER : ?

The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is

-ve

+ve

∞

TRUE ANSWER : ?
YOUR ANSWER : ?

Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be

Halved

Same

Doubled

One fourth of its original value

TRUE ANSWER : ?
YOUR ANSWER : ?

Charles' law for gases states that

V ∝ 1/T

V/T = Constant

PV/T = Constant

V ∝ 1/P

TRUE ANSWER : ?
YOUR ANSWER : ?