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You need to login to ask any Questions from chapter Transmission-of-heat of Physics-Model-Exam

Chapter:

Transmission-of-heat

1.
1 kg ice at `0^0`c is mixed with 1 kg of water at `80^0`c n temperature of mixture will be

`0^0c` `40^0c` `80^0c` `60^0c`

`0^0c`

`ice water`

`Q_1 = 1 X 80 X 4200 Q_2 = 1 X 4200 X 80 `

` = 336000 J = 336000 J`

`Q_1 = Q_2`

Therefore,` temperature = 0^0 c `

Hint Answer

2.
There was a discussing between

me and her them and us you and her me and them

you and her

Answer

3.
Replace underlined part :
They, you and we need assistance.

We, you and they You, we and they You, they and we They, we and you

We, you and they

Answer

4.
It is know to us that y pride ......................... as superior.

himself ourselves themselves yourselves

themselves

Answer

5.
160 g of water at `30^0 c `is poured on a large block of ice at `0^0`c. The mass of ice that melt is

30 g 60 g 50 g 1600 g

60 g

160 x 30 = m x 80

or, m = 60 g

Hint Answer

6.
80 g of water at `30^0`c is poured on a large block of ice at `0^0`c. The mass of ice that melt is

30 g 50 g 150 g 160 g

30 g

`mL_f = 80X30`

`m = (80X30)/80 = 30 g`

Hint Answer

7.
The matter was resolved among ......................

me them we she

them

Answer

8.
25 g of ice at `0^0`c is mixed with 50 g of water. The minimum temperature of water so that all ice just melt is

`20^0c` `40^0c` `80^0c` `92^0c`

`40^0c`

`25 X 80 = 50ta`

`or`, `ta = (25 X 80)/50 = 40^0c`

Hint Answer

9.
Tomorrow is seminar for.................teachers.

we us they she

us

Answer

10.
5 g ice at `0^0`c is mixed with 10 g water at `10^0`c. The temperature of mixture will be

in between `5^0`c & `10^0`c between `0^0`c & `5^0`c `0^0`c `10^0`c

`0^0`c

ice water

`Q_1` = 5x80 = 400 cal `Q_2` = 10x10 = 100 cal

`Q_1` > `Q_2` so ice partially melt

Therefore, temperature = `0^0`c

Hint Answer

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Topics

This Chapter Transmission-of-heat consists of the following topics

Calorimetry multiple choice questions

objective physics

ioe

iom

BPKIHS

1 kg ice at `0^0`c is mixed with 1 kg of water at `80^0`c n temperature of mixture will be

There was a discussing between

Replace underlined part :
They, you and we need assistance.

It is know to us that y pride ......................... as superior.

160 g of water at `30^0 c `is poured on a large block of ice at `0^0`c. The mass of ice that melt is

80 g of water at `30^0`c is poured on a large block of ice at `0^0`c. The mass of ice that melt is

The matter was resolved among ......................

25 g of ice at `0^0`c is mixed with 50 g of water. The minimum temperature of water so that all ice just melt is

Tomorrow is seminar for.................teachers.

5 g ice at `0^0`c is mixed with 10 g water at `10^0`c. The temperature of mixture will be

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