Home
Class 9
PHYSICS
A Quill's tube of one metre is taken. A ...

A Quill's tube of one metre is taken. A certain amount of ideal gas is trapped in it by a 20 cm length of Hg column. When the tube is held vertical with open end upwards, the length of the gas column is 50 cm. Find the pressure and length of the trapped gas, when the Quill's tube is kept in slanting position making `45^(@)` with the vertical open and upwards. (Take atmospheric pressure as 76 cm of Hg and `sqrt(2)=1.414)`.

Text Solution

Verified by Experts

`E=("work done")/("input")xx100`
`40=(W)/(2xx44,800)xx100`
`W=35,840 kJ`
The amount of energy wasted `=89600 kJ - 35840 kJ=43760 kJ`
Promotional Banner

Similar Questions

Explore conceptually related problems

If above tube is held vertical with open end upward then find the length of air column (in cm).

A uniform tube closed at aone end, contains a pellet of mercury 10cm long. When the tube is lept vertically with the closed-end upward, the length of the air column trapped is 20cm. Find the length of the air column trapped when the tube is inverted so that the closed-end goes down. Atmospheric pressure =75cm of mercury.

A quill tube contains a mercury column of length 19cm . The length of air column is 24cm when it is held veritcally. On inverting it with its open end downwards the length of air column will be (atmospheric pressure = 76cm of Hg )

A uniform tube closed at one end, contains a pallet of mercury 4 cm long. When the tube is kept vertically with closed end upwards, the length of air column between closed end and mercury pallet is 10 cm. the tube is inverted so that open end becomes upwards. find the length of trapped air column (in cm) trapped. take atmospheric pressure 76 cm of Hg.

Air is trapped in a horizontal glass tube by 36 cm mercury column as shown below : If the tube is held vertical keeping the open end up, lengh of air column shrink to 19 cm. What is the lengh (in cm) by which the mercury column shifts down?

A narrow uniform glass tube contains air enclosed by 15 cm long thread of mercury. When the tube is vertical with open end uppermost, the air column is 30 cm long. When the tube is inverted, the length of air column becomes 45 cm. Calculate the atmospheric pressure.

What will be the length of mercury column in a barometer tube when the atmospheric pressure is x cm of mercury and the tube is inclined at an angle phi with the vertical direction ?