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Standard X

Physics

Specific Heat Capacity

i If specific...

Question

(i) If specific heat of ice is 0.5 cal $g^{- 1} C^{- 1}$ , then the amount of heat required to convert 10 g of ice from ${- 5}^{\circ} C$ to $0^{\circ} C$ .

15 c a l

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25 c a l

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50 c a l

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100 c a l

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Solution

The correct option is B $25 c a l$
The amount of heat required, $Q = m S Δ T = (10) (0.5) [0 - (- 5)] = 25 c a l$

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Similar questions

Q. In a process 10 g of ice at

- 5^{o} C

is converted into the steam at

100^{o} C

. If specific heat of ice is

0.5 c a l g^{- 1}^{o} C^{- 1}

, then the amount of heat required to convert 10 g of ice from

- 5^{o} C

0^{o} C

is :

Q. The amount of heat required to convert

1 g

of ice at

- 10^{o}

C into steam at

100^{o}

C is (specific heat of ice

= 0.5

cal/g/

^{o}

C, latent heat of ice

= 80

cal/g, latent heat of steam

= 540

cal/g)

Q. The amount of heat required to convert

5 g

of ice at

0^{o} C

into water at

40^{o} C

is (Take heat of fusion

= 80 c a l / g

, specific heat

= 1 c a l / g

) :

Q. The amount of heat required to raise the temperature of

75 g

of ice at

0^{o} C

to water at

10^{o} C

is:

[latent heat of fusion of ice is

80 c a l / g

, specific heat of water is

1 c a l / g^{o} C

]

Q. (i) In a process 10 gm of ice at

- 5^{o} C

is converted into steam at

100^{o} C

. If specific heat of water 1 cal

g^{- 1}

^{\circ} C^{- 1}

, the heat required to rise the temperature of water 10 g from

0^{\circ} C

100^{\circ} C

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(i) If specific heat of ice is 0.5 cal g−1C−1, then the amount of heat required to convert 10 g of ice from −5∘C to 0∘C.

The correct option is B 25calThe amount of heat required, Q=mSΔT=(10)(0.5)[0−(−5)]=25cal

(i) If specific heat of ice is 0.5 cal $g^{- 1} C^{- 1}$ , then the amount of heat required to convert 10 g of ice from ${- 5}^{\circ} C$ to $0^{\circ} C$ .

The correct option is B $25 c a l$
The amount of heat required, $Q = m S Δ T = (10) (0.5) [0 - (- 5)] = 25 c a l$