Thermodynamics Test

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Thermodynamics Test - 29

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Weekly Quiz Competition

Question 1
4 / -1

Equal volumes of molar hydrochloric acid and sulphuric acid are neutralized by dil. NaOH solution and x kcal and y kcal of heat are liberated respectively. Which of the following is true ?

A
x = y

B
x = 1/2y

C
x = 2y

D
None of these
Question 2
4 / -1

A
∆S = O

B
∆H = ∆O

C
∆H = ∆E

D
∆H = T∆S
Question 3
4 / -1

Which one of the following bonds has the highest average bond energy (kcal/mole)?

A
S = O

B
C = C

C
C ≡ N

D
N ≡ N
Question 4
4 / -1

Identify the state function among the following

A
q

B
q – w

C
q / w

D
q + w
Question 5
4 / -1

In the reaction CO₂(g) + H₂(g) → CO₂(g) + H₂O(g); ∆H = 2.8 kJ ∆H represents

A
heat of reaction

B
heat of combustion

C
heat of formation

D
heat of solution
Question 6
4 / -1

The energy change of reaction C₂H₆(g) → 2C(g) + 6H(g) is X kJ.The bond energy of C – H bond is

A
X/6kJ

B
X/3 kJ

C
X kJ

D
Indeterminate
Question 7
4 / -1

The enthalpy of nutralistion of a weak acid by a strong base is

A
– 57 .32 kJ

B
+57.32 kJ

C
equal to – 57.32 k J + enthalpy of ionization of weak acid

D
more than – 57.32 kJ
Question 8
4 / -1

The heat required to raise the temperature of a body by 1K is called

A
specific heat

B
thermal capacity

C
water equivalent

D
none of these
Question 9
4 / -1

Under the same conditions how many ml of 1 M KOH and 0.5 H₂SO₄ solutions, respectively, when mixed to form a total volume of 100 ml. produce the highest rise in temperature.

A
67, 33

B
33, 67

C
40 , 60

D
50, 50
Question 10
4 / -1

Enthalpy of neutralisation of HCl with NaOH is x. The heat evolved when 500 ml of 2 NHCl are mixed with 250 ml of 4 N NaOH will be

A
500 x

B
100 x

C
x

D
10 x

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Thermodynamics Test - 29

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Thermodynamics Test - 29

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SHARING IS CARING

Question 1

x = y

x = 1/2y

x = 2y

None of these

Question 2

∆S = O

∆H = ∆O

∆H = ∆E

∆H = T∆S

Question 3

S = O

C = C

C ≡ N

N ≡ N

Question 4

q

q – w

q / w

q + w

Question 5

heat of reaction

heat of combustion

heat of formation

heat of solution

Question 6

X/6kJ

X/3 kJ

X kJ

Indeterminate

Question 7

– 57 .32 kJ

+57.32 kJ

equal to – 57.32 k J + enthalpy of ionization of weak acid

more than – 57.32 kJ

Question 8

specific heat

thermal capacity

water equivalent

none of these

Question 9

67, 33

33, 67

40 , 60

50, 50

Question 10

500 x

100 x

x

10 x

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