10 g of ice at 0 ice at 00Cis mixed with m mass of water at 500 C- What is minimum value of mso that ice melts completely- L - 80 cal-g and s - 1 cal- g-0C

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Standard XII

Chemistry

Introduction to Le Chatelier's Principle

10 g of ice a...

Question

10 g of ice at 0 ice at 0⁰C is mixed with m mass of water at 50⁰ C. What is minimum value of m so that ice melts completely?( L = 80 cal/g and s = 1 cal/ g-⁰C)

32 g

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20 g

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40 g

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16 g

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Solution

The correct option is D
16 g

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10 g of ice at 0 ice at 0⁰C is mixed with m mass of water at 50⁰ C. What is minimum value of m so that ice melts completely?( L = 80 cal/g and s = 1 cal/ g-⁰C)

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100^{o} C

. Minimum value of m so that finally all ice and steam converts into water. (Use

S_{i c e} = 0.5

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S_{w a t e r} = 1

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, L(melting)=80 cal/gm and L (vapourization)=540 cal/gm)

20 gm

ice at

- 10^{\circ} C

is mixed with

m gm

steam at

100^{\circ} C

. The minimum value of

m

so that finally all ice and steam converts into water at

0^{\circ} C

(

Use: specific heat and latent heat as

C_{i c e} = 0.5 cal/gm^{\circ} C, C_{water} = 1 cal/gm^{\circ} C, L_{f u s i o n}

= 80 cal/gm

and

L_{v a p o r}

= 540 cal/gm

)

Q. Calculate the velocity with which a piece on ice at

- 5^{o} C

be thrown against a wall so that its entire mass melts upon contact. Latent heat of

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Q. 80

g

of water at

30^{\circ} C

is poured on a large block of ice at

0^{\circ} C

. The mass of ice that melts is (Latent heat of fusion of ice is

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1 c a l / g^{\circ} C

)

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10 g of ice at 0 ice at 00C is mixed with m mass of water at 500 C. What is minimum value of m so that ice melts completely?( L = 80 cal/g and s = 1 cal/ g-0C)

The correct option is D 16 g

10 g of ice at 0 ice at 0⁰C is mixed with m mass of water at 50⁰ C. What is minimum value of m so that ice melts completely?( L = 80 cal/g and s = 1 cal/ g-⁰C)

The correct option is D
16 g