Thermodynamics Test

Result

Thermodynamics Test - 39

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

For a reversible isothermal process in equilibrium, the entropy change is given by the expression

A

B

C

D

Solution
Question 2
4 / -1

The approximate enthalpy of fusion of ice and the enthalpy of vaporisation of water per mole respectively are

A
18 kJ, 80 kJ

B
6kJ, 40.6 kJ

C
80 kJ, 540 kJ

D
8 kJ, 80kJ
Question 3
4 / -1

For a reaction R₁, ∆G = x kJ mol^-1. For a reaction R₂, ∆G = y kJ mol^-1 Reaction R₁ is non-spontaneous but along with R₂ it is spontaneous. This means that

A
x is –ve, y is +ve but in magnitude x > y

B
x is +ve, y is – ve but in magnitude y > x

C
both x and y are –ve but not equal

D
both x and y are +ve but not equal

Solution
Question 4
4 / -1

According to latest sign conventions, the correct expression representing the first law of thermodynamic is

A
∆E = q + w

B
∆ E = ∆H + PV

C
∆E = q – w

D
all the expressions are correct
Question 5
4 / -1

The entropy of a perfectly crystalline solid at absolute zero is

A
positive

B
negative

C
zero

D
not definite
Question 6
4 / -1

∆G for the reaction Ag₂O → 2 Ag + 1/2 O₂ at a certain temperature is found to be – 10.0 kJ mol^-1. Which one of the following statements is correct at this tempertature?

A
Silver oxide decomposes to give silver and oxygen

B
Silver and oxygen combine to form silver oxide

C
The reaction is in equilibrium

D
The reaction can neither occur in the forward direction nor in the backward direction.
Question 7
4 / -1

In a change from state A to state B

A
q depends only on the initial and final state

B
w depends only on the initial and final state

C
∆E depends only on the initial and final state

D
∆E depends upon the path adopted by A to change into B
Question 8
4 / -1

For which of the following process will energy be absorbed?

A
Separating an electron from an electron

B
Separating a proton from a proton

C
Separating a neutron from a neutron

D
Separating an electron from a neutral atom.
Question 9
4 / -1

For which reaction from the following, ∆S will be maximum ?

A

B

C

D
Question 10
4 / -1

When water is added to conc. H₂SO₄ it gets very hot. This happens because dilution of conc. H₂SO₄ is

A
an exothermic reaction

B
an endothermic reaction

C
photochemical reaction

D
hydrolytic reaction