Thermodynamics Test

Result

Thermodynamics Test - 45

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following relationships is correct?

A

B

C

D

Solution
Question 2
4 / -1

The temperature of the system decreases in an

A
Adiabatic compression

B
Isothermal compression

C
Isothermal expansion

D
Adiabatic expansion
Question 3
4 / -1

If a refrigerator’s door is opened, then we get

A
Room heated

B
Room cooled

C
More amount of heat is passed out

D
No effect on room
Question 4
4 / -1

The cooling in refrigerator is due to

A
Reaction of the refrigerator gas

B
Expansion of ice

C
The expansion of the gas in the refrigerator

D
The work of the compressor
Question 5
4 / -1

Warming ammonium chloride with sodium hydroxide in a test tube is an example of :

A
Closed system

B
Isolated system

C
Open system

D
None of these
Question 6
4 / -1

A thermodynamic state function is

A
one which obeys all the laws of thermodynamics

B
a quantity which is used in measuring thermal changes

C
one which is used in thermo chemistry

D
a quantity whose value depends only on the state of the system.
Question 7
4 / -1

In thermodynamics, a process is called reversible when

A
surroundings and system change into each other

B
there is no boundary between system and surroundings

C
the surroundings are always in equilibrium with the system

D
the system changes into the surroundings spontaneously
Question 8
4 / -1

Which one of the following statement is false–

A
work is a state function

B
temperature is a state function

C
change in the state is completely defined when the initial and final states are specified

D
work appears at the boundary of the system
Question 9
4 / -1

A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If ∆H is the enthalpy change and ∆E is the change in internal energy, then

A
∆H < ∆E

B
∆H > ∆E

C
∆H = ∆E

D
The relationship depends on the capacity of the vessel
Question 10
4 / -1

At constant T and P, which one of the following statements is correct for the reaction,

A
∆H is independent of the physical state of the reactants of that compound

B
∆H < ∆E

C
∆H > ∆E

D
∆H = ∆E