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Molality

Equal volumes...

Question

Equal volumes of $1 m$ $H C l$ and $1 M$ $H_{2} {S O}_{4}$ are neutralised by $1 M$ $N a O H$ solution and $x$ and $y$ $k J . e q u i v a l e n t$ of heat are liberated respectively. Which of the following relations is correct?

x = 2 y

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x = 3 y

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x = 4 y

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x = 1 / 2 y

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Solution

The correct option is C $x = 1 / 2 y$
Since $H_{2} {S O}_{4}$ gives $2$ moles $H^{+}$ while $H C l$ gives $1$ mole $H^{+}$ from $1$ mole after ionisation. Hence, $H_{2} {S O}_{4}$ will release double amount of heat as compared to $H C l$ .

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Similar questions

Equal volumes of 1M Hcl and $H_{2} S O_{4}$ are neutralised by 1M NaoH solution and x and y KJ/equivalent of heat are liberated, respectively. Which of the following relations is correct?

Q. Equal volumes of

1 M

H C l

and

1 M

H_{2} S O_{4}

are neutralized by dilute NaOH solution liberating

x

kcal and

y

kcal heat. Which of the following is correct?

Q. Equal volumes of molar

H C l

and

H_{2} S O_{4}

are neutralised by dilute

N a O H

solution and

x

Kcal and

y

Kcal of heat are liberated respectively. Which of the following is true?

Q. Equal volume of 1

M H C l

and 1

M H_{2} S O_{4}

are neutralized by dilute NaOH solution and

x

and

y

kcal of heat are liberated respectively. Which of the following is true?

Q. Equal volumes of 1 M HNO

_{3}

and 1 M

H_{3} P O_{4}

are neutralised by dilute NaOH solution. If x and y K.cals are the heats liberated in the neutralisation of HNO

_{3}

and

H_{3} P O_{4}

respectively, the relation between x and y (assume

H_{3} P O_{4}

is completely ionised).

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Equal volumes of 1m HCl and 1M H2SO4 are neutralised by 1M NaOH solution and x and y kJ.equivalent of heat are liberated respectively. Which of the following relations is correct?

The correct option is C x=1/2ySince H2SO4 gives 2 moles H+ while HCl gives 1 mole H+ from 1 mole after ionisation. Hence, H2SO4 will release double amount of heat as compared to HCl.

Equal volumes of $1 m$ $H C l$ and $1 M$ $H_{2} {S O}_{4}$ are neutralised by $1 M$ $N a O H$ solution and $x$ and $y$ $k J . e q u i v a l e n t$ of heat are liberated respectively. Which of the following relations is correct?

The correct option is C $x = 1 / 2 y$
Since $H_{2} {S O}_{4}$ gives $2$ moles $H^{+}$ while $H C l$ gives $1$ mole $H^{+}$ from $1$ mole after ionisation. Hence, $H_{2} {S O}_{4}$ will release double amount of heat as compared to $H C l$ .