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Standard XII

Chemistry

Enthalpy of Neutralisation

Which of the ...

Question

Which of the following acid will release maximum amount of heat when completely neutralized by strong base NaOH?

1M HCl

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1M HNO₃

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1M HClO₄

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1M H₂SO₄

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Solution

The correct option is D
1M H₂SO₄

Ionisation of $H_{2} S O_{4}$ gives double amount of $H^{+}$ ions as compared to other acids
$H_{2} S O_{4} ⟶ 2 H^{+} + S O_{4}^{- 2}$

Therefore 1M $H_{2} S O_{4}$ release more amount of heat compared to others.

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Similar questions

Q. When

1 g

equivalent of strong acid reacts with strong base heat released is

13.5 K c a l

. When

1 g

equivalent

H_{2} A

is completely neutralised against strong base

13 K c a l

is released. When

1 g

equivalent

B (O H)_{2}

is completely neutralised against strong acid 10 Kcal heat is released. Calculate enthalpy change when 1 mole

H_{2} A

is completely neutralized by

B (O H)_{2}

Q. The heat of neutralization of a strong base and a strong acid is

57 k J

. The heat released when

0.5

mole of

H N O_{3}

solution is added to

0.20 m o l e s

N a O H

solution, is:

Q. How much heat will be released when 5 L of 0.2 M

H_{2} S O_{4}

is completely neutralized by strong base. If heat of neutralization of strong acid and strong base is

- 57.3

kJ.

Q. Assertion :Heat of neutralization of perchloric acid,

H C l O_{4}

, with

N a O H

is same as that of

H C l

with

N a O H

. Reason: Both

H C l

and

H C l O_{4}

are strong acids.

The heat of neutralization of a strong base and a strong acid is 57 kJ. The heat released, when 0.5 mole of $H N O_{3}$ solution is added to 0.20 moles of NaOH solution, is:

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Which of the following acid will release maximum amount of heat when completely neutralized by strong base NaOH?

The correct option is D 1M H2SO4 Ionisation of H2SO4 gives double amount of H+ ions as compared to other acids H2SO4⟶2H++SO−24 Therefore 1M H2SO4 release more amount of heat compared to others.

The correct option is D
1M H₂SO₄

Ionisation of $H_{2} S O_{4}$ gives double amount of $H^{+}$ ions as compared to other acids
$H_{2} S O_{4} ⟶ 2 H^{+} + S O_{4}^{- 2}$

Therefore 1M $H_{2} S O_{4}$ release more amount of heat compared to others.