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Important questions on Calorimetry

EASY

The quantity of heat required to raise the temperature of 2000 g of water from 10C to 50C is

A

80 cal

B

80,000 cal

C

8000 cal

D

none of these

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EASY

5 g of water at and 5 g of ice at are mixed together in a calorimeter. What is the final temperature of the mixture. Given specific heat of ice and latent heat of fusion of ice .

A

B

C

D

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EASY

The table lists the melting points and the boiling points of four different substances. Which substance is a liquid at ?

A

melting point/ : ; boiling point/ :

B

melting point/ : ; boiling point/ :

C

melting point/ : ; boiling point/ :

D

melting point/ : ; boiling point/ :

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EASY

A piece of copper weighing 500 g is heated to and dropped into 200g of water at . Find the temperature of the mixture. The specific heat of Cu is .

A

B

C

D

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EASY

A thermos bottle containing coffee is vigorously shaken. If the coffee is considered as a system, then the temperature of the coffee will 

A

increase slightly

B

fall

C

remain the same

D

never be determined

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EASY

In a process 10 g of ice at is converted into the steam at If specific heat of ice is , then the amount of heat required to convert 10 g of ice from to is :

A

15 cal

B

25 cal

C

50 cal

D

100 cal

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EASY

When 60 calories of heat are supplied to 15 g of water, the rise in temperature is

A

B

C

D

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EASY

400 g of ice at 253 K is mixed with 0.05 kg of steam at . Latent heat of vaporisation of steam . Latent heat of fusion of ice . Specific heat of ice . Find the resultant temperature of the mixture.

A

253 K

B

260 K

C

273 K

D

290 K

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EASY

What is the final temperature of the mixture of 300 g of water at added to 100 of ice at .

A

B

C

D

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EASY

A thermometer is used to measure 

A

heat

B

thermal capacity

C

water equivalent

D

temperature

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