CHEMISTRY ONLINE TEST 19

1 / 10

Gibbs free energy change (ΔG) is given by —

ΔU + PΔV

ΔH + TΔS

ΔS − TΔH

ΔH − TΔS

2 / 10

Which of the following is an intensive property?

Temperature

Mass

Enthalpy (H)

Volume

3 / 10

The efficiency of a heat engine can never be 100% because —

Energy is lost

Heat engines are inefficient

Work cannot be produced

Entropy always increases

4 / 10

In an exothermic reaction, ΔH is —

Negative

Positive

Zero

Maximum

5 / 10

Which process has ΔU = 0?

Adiabatic expansion

Isochoric process

Isobaric process

Isothermal expansion of ideal gas

6 / 10

Enthalpy change (ΔH) is equal to heat absorbed at —

Constant volume

Constant pressure

Constant temperature

Adiabatic condition

7 / 10

For an isolated system, the change in entropy is —

Positive for spontaneous process

Always positive

Always negative

Zero

8 / 10

The SI unit of entropy is —

J mol⁻¹

J K⁻¹

J mol⁻¹ K⁻¹

9 / 10

Which of the following is a state function?

Work

Internal energy

Heat

Path length

10 / 10

The first law of thermodynamics is a statement of —

Conservation of energy

Conservation of mass

Entropy change

Spontaneity

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CHEMISTRY ONLINE TEST 19

chemistry online test 19 for JEE NEET EAPCET EXAMS.

About Saheb Shaik