Thermodynamics Test

Result

Thermodynamics Test - 8

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
1 / -0

Which of the following statement is not correct?

A
ΔG is positive for a spontaneous reaction

B
ΔG is positive for a non-spontaneous reaction

C
ΔG is negative for a spontaneous reaction

D
ΔG is zero for a reaction at equilibrium

Solution

ΔG <0 (negative) for a spontaneous change.
Question 2
1 / -0

For the process, H₂O (l) + 40.7 kJ → H₂O (g) ,select the correct statement:

A
ΔH < 0 hence process is exothermic

B
ΔH > 0 hence process is endothermic

C
ΔH < 0 hence process is endothermic

D
ΔH > 0 hence process is exothermic

Solution

Heat is utilized in this reaction so reaction is endothermic and for an endothermic process ΔH > 0 .
Question 3
1 / -0

Standard Molar Enthalpy of Formation is the standard enthalpy change for the formation of -

A
one mole of a compound from its elements in at a pressure of 10 bar and 30° C.

B
one kg of a compound from its elements in their most stable states of aggregation.

C
one mole of a compound from its elements in at a pressure of 2 bar and 25° C.

D
one mole of a compound from its elements in their most stable states of aggregation.

Solution

The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation (reference states) is standard molar enthalpy of formation.