Worksheets2.3 Gas Pressure F5
Total questions: 24
Worksheet time: 6hrs 0mins
Calculate density of the blue liquid
Hitung ketumpatan cecair biru
755 kg m-3
1200 kg m-3
691 kg m-3
1120 kg m-3
Convert 45 cm Hg to unit Pascal
Tukar 45 cm Hg kepada unit Pascal
[density of mercury: 13 600 kg m3]
100 kPa
60 kPa
40 kPa
45 kPa
A wall of seaside can withstand 400 kPa of pressure. What is the pressure in unit m H2O?
Sebuah tebing laut boleh menahan tekanan sebanyak 400 kPa. Apakah tekanan itu dalam unit H2O
[density of water: 1000 kg m-3]
47.70 m
40.77 m
37.47 m
What is the pressure difference, in cm of water, shown by the manometer?
9
16
20
25
A
B
C
D
Pressure can be measure in cm of water.
What is the pressure of the gas?
8 cm of water more than atmospheric pressure
12 cm of water more than atmospheric pressure
8 cm of water less than atmospheric pressure
12 cm of water less than atmospheric pressure
What will happen to the height (h) of the mercury column in the manometer shown below if the stopcock is opened, given that the atmospheric pressure is 755 mmHg?
h will decrease
h will not change
h will increase
not enough information given to answer the question
Which gas has a greater pressure?
air
methane
The gas pressures are equal
If the air pressure is 750 mmHg, what is the pressure of Gas B?
695 mmHg
805 mmHg
750 mmHg
55 mmHg
What is the pressure of gas C if the air pressure is 760?
1405 mmHg
645 mmHg
115 mmHg
A manometer is used to measure the pressure of an unknown gas. What is the Pressure of the unknown gas? (atmospheric pressure = 100 kPa, density of mercury = 13,600 kg/m3)
121.8 kPa
128.6 kPa
106.8 kPa
93.2 kPa
If the atmospheric pressure is 740 mmHg, what is the pressure of the methane gas?
740 mmHg
770 mmHg
710 mmHg
30 mmHg
Which gas has a greater pressure?
Gas C
Air
The gas pressures are equal
The pressure inside the toy is
more than the air pressure
less than the air pressure
equal to the air pressure
equal to the gauge pressure
The height difference (here in the picture) between the levels of the u tube manometer is equal to the
atmospheric pressure
the difference between air pressure and gas pressure
none
gas pressure
What is the pressure of trapped gas
76 cm of Hg
(76-10) cm of Hg
(76+10) cm of Hg
10 cm of Hg
Estimate the pressure in the water pipe shown. The manometer is open to the atmosphere.
10 kPa
8 kPa
9 kPa
7 kPa
Alat-alat untuk ukur tekanan gas adalah
Tolok bourdon
Barometer Fortin
Barometer Aneroid
Manometer
Apakah yang berlaku kepada tekanan atmosfera apabila ketinggian dari aras laut berkurang?
Tekanan atmosfera tidak berubah
Tekanan atmosfera rendah
Tekanan atmosfera tinggi
Apabila pili dibuka, air yang keluar semakin berkurang dan akhirnya berhenti mengalir. Apakah cara untuk mengatasi masalah ini?
Menggunakan bekas kaca agar tekanan lebih tinggi dapat dikenakan ke atas air
Menggunakan bekas air yang lebih besar
Membuka penutup bekas
Apakah perbandingan yang benar mengenai tekanan di titik A dan di titik B?
Tekanan di titik A adalah sama dengan tekanan di titik B
Tekanan di titik A adalah besar berbanding tekanan di titik B
Tekanan di titik A adalah rendah berbanding tekanan di titik B
Rajah menunjukkan satu manometer mengandungi merkuri disambung kepada satu tangki yang diisi oleh cecair dan gas metana. Berapakah tekanan gas metana?
20 cm Hg
96 cm Hg
76 cm Hg
Rajah menunjukkan paras merkuri dalam manometer apabila ia disambung kepada satu bekalan gas. Berapakah tekanan gas tersebut?
5 cm Hg
20 cm Hg
81 cm Hg
