Question

In order to maintain the boiling point of water at
110°C the external pressure should be
a) Between 760 torr & 1200 torr.
by Between 200 torr 4 760 torr
C) 765 torr
d) Any value of pressure​

Answer 1

Answer:

Correct Option- a) Between 760 torr & 1200 torr.

Explanation:

Concept:

The boiling temperature of the water is 100°C

at which the external pressure is 1 atm .

Boiling point varies directly to the external pressure.

So, in order to maintain the boiling point of water at 110°C

PT'=P'T

Where,

P is the external pressure when T temperature at 100°C is 1 atm = 760torr

P' is the external pressure when T ' temperature at 110°C is -

Given:

P = 1 atm= 760torr

P' = ?

T= 100°C

T' = 110°C

To find:

External pressure of water at 110°C

Step by step explanation :

PT'=P'T

Where,

P is the external pressure when T temperature at 100°C is 1 atm

P' is the external pressure when T ' temperature at 110°C is -

PT'=P'T

760x110°C= P'x100

P'= 760x110/100

P'=836torr

Hence the final answer is P'= 836 , which is between 760 torr & 1200 torr.

a) Between 760 torr & 1200 torr.

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