Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 10

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If $10 g$ of ice at $0 ° C$ is mixed with $10 g$ of water at $40 ° C,$ the final mass of water in the mixture is

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Important Questions on Thermal Properties of Matter

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 11

Steam at

100

° C

is passed into

2.0 kg

of water contained in a calorimeter of water equivalent

0.02 kg

at

15 ° C

, till the temperature of the calorimeter and its contents rise to

90

° C

. The mass of steam condensed (in

kg

) is

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 12

A small quantity of mass

m

of water at a temperature

θ (

in

{}^{\circ}C)

is poured on to a large mass

M

of ice which is at its melting point. If

c

is the specific heat capacity of water and

L

the latent heat of fusion of ice, then the mass of ice melted is given by,

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 13

20 gm

ice at

- 10 º C

is mixed with

m gm

steam at

100 º C

. Minimum value of

m

so that finally all ice and steam converts into water.

(s_{ice} = 0.5 cal {gm}^{- 1} º C^{- 1}, s_{water} = 1 cal {gm}^{- 1} º C^{- 1}, L (melting) = 80 cal {gm}^{- 1}

and

L (vaporization) = 540 cal {gm}^{- 1})

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 14

How much heat energy is gained when

5 kg

of water at

20 ° C

is brought to its boiling point (specific heat of water

= 4.2 kJ {kg}^{- 1} ° C^{- 1}

)

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 15

Compared to a burn due to water at

100 ° C

a burn due to steam at

100 ° C

is

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 16

A quality of a thermometer is that its heat capacity should be small. If

P

is mercury thermometer,

Q

is resistance thermometer and

R

thermocouple type then

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 17

If

1 g

of steam is mixed with

1 g

of ice, then the resultant temperature of the mixture is.

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 18

The amount of heat required to convert a gram of ice at

0 ° C

into steam at

100 ° C

will be: (

L_{ice} = 80 cal g^{- 1}

,

s_{water} = 1 cal g^{- 1} ° C^{- 1}

and

L_{Vaporisation} = 536 cal g^{- 1}

)