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Byju's Answer

Standard XII

Physics

Specific Heat Capacity

Which one of ...

Question

Which one of the following would raise the temperature of 20 g of water at 30⁰C most when mixed with? (Specific heat of water is 1 cal/g ⁰ C)

20 g of water at 40⁰ C

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40 g of water at 35⁰ C

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10 g of water at 80⁰ C

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4 g of water at 80⁰ C

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Solution

The correct option is D
4 g of water at 80⁰ C

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Similar questions

Q. Which one of the following would raise the temperature of

20 g

of water at

20^{\circ} C

most when mixed with ?
(Specific heat of water

= 1 {cal/g}^{\circ} C

)

120 g

of ice at

0^{\circ} C

is mixed with

100 g

of water at

80^{\circ} C

. Latent heat of fusion is

80 cal/g

and specific heat of water is

1 {cal/g}^{\circ} C

. The final temperature of the mixture is
(correct answer + 1, wrong answer - 0.25)

1 kg

of ice at

- 10^{\circ} C

is mixed with

4.4 kg

of water at

30^{\circ} C

. The final temperature of mixture is

Given specific heat of ice

= 0.5 {cal/g}^{\circ} C

,
Specific heat of water

= 1 {cal/g}^{\circ} C

,
Latent heat of fusion for ice

= 80 cal/g

2 kg

ice at

- 20^{\circ} C

is mixed with

5 kg

water at

20^{\circ} C

. Then final amount of water in the mixture would be
Given specific heat of ice

= 0.5 {cal/g}^{\circ} C

,
Specific heat of water

= 1 {cal/g}^{\circ} C

,
Latent heat of fusion for ice

= 80 cal/g

100 g

of ice

(latent heat 80 {cal g}^{- 1})

0^{\circ} C

is mixed with

100 g

of water (specific heat

1 {cal g}^{- 1 \circ} C^{- 1}

) at

80^{\circ} C

. The final temperature of the mixture will be

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Which one of the following would raise the temperature of 20 g of water at 300C most when mixed with? (Specific heat of water is 1 cal/g 0 C)

The correct option is D 4 g of water at 800 C

Which one of the following would raise the temperature of 20 g of water at 30⁰C most when mixed with? (Specific heat of water is 1 cal/g ⁰ C)

The correct option is D
4 g of water at 80⁰ C