If balloon is filled with dry air which contains mixture of 79% N2, and 21% O2 at 25°C then which component of the air will effuse out first (a) O2, because it has higher mass than N2 (b) N2, because it has lower mass than O2 (c) O2 and N2 both will effuse out at the same time (d) Whole air will effuse out and balloon will regain its original shape?

(a) and (b)
(c) and (d)
(a) only
(b) only

LohaHridoy

6 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : (b) only

The correct answer (b) only

Nitrogen and oxygen both are constituents of our atmosphere and make up about 78% and 21% of our air.
Nitrogen atoms are smaller than oxygen, as they have one less proton and one less electron than oxygen. Hence b is correct

6 views Answered 2022-09-04 04:29

Related Questions

Five students participated in a Quiz Programme. Prithvi ranked higher than Smriti. Smriti ranked higher than Pranav. Prithvi ranked lower than Alvira. Madhura's rank is in between Prithvi and Smriti. Who is the highest in rank?

1 Answers 8 Views

P and Q can complete whole work in 60/11 days and P can complete whole work alone in 12 days. If Q starts functioning only at 60% of its original capacity then in how many days will P and Q complete the whole work?

1 Answers 4 Views

Two pipes are connected to tank 1 and one pipe connects tank 1 and tank 2 at the bottom of both tanks. At first pipe A and pipe B will filling tank 1 and then pipe C would be opened to fill tank 2. Capacity of tank 1 is twice capacity of tank 2. Pipe C takes 8 minutes to fill the whole tank 2 wherein discharging capacity of pipe C is 62.5 liters per minute. Ratio of time taken by pipe A and B to fill the tank when operating alone is 4 : 5 then find approximate discharging capacity of pipe A and B in liters/ minute if both the pipes discharge equal amount of water in tank. Time taken by pipe A and B to fill the tank 1 is 20/ 3 minutes?

1 Answers 6 Views

Time taken by pipe A and pipe B to fill up the cistern is 12 minutes whereas time taken by pipe C to empty the whole cistern is twice that of time taken by A and B together to fill the tank and ratio of time taken by pipe A and B to fill up the tank when operating alone is 2 : 3. If pipe A and B are alternatively opened every 6 minutes and C is opened with pipe B but closed when pipe A is opened then calculate total time taken to fill up the whole cistern. ?

1 Answers 5 Views

Ratio of time taken to fill up the tank by pipe B and pipe A is 2 : 1, pipe C requires 2 minutes less then pipe A to empty the whole tank and if all the three pipes are opened together then it requires 40 minutes to fill up the whole tank. Now, if all the pipes are closed after 10 minutes then how much time does pipe B take to fill the whole tank?

1 Answers 5 Views

Ram has a mixture in which it contains 46 litres of water and x litres of milk. He further added 23 litres of orange juice in the mixture. Find the amount of milk is what per cent of the amount of water in the mixture if milk constitutes 25% of the whole new mixture. ?

1 Answers 4 Views

Each of the questions below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. Find the percentage of impurity in the mixture. I. A discount vendor professes to sell his at the cost price and mixes with impurity and thereby gain 25%. II. If in 45 kg of mixture, 5/2 times quantity of impurity is equal to 150% of 2/3 of the quantity of whole mixture. III. The ratio of quantity of pure wheat in the mixture to the total quantity of the mixture in 3 : 5. (Mixture is made of pure wheat and impurity)?

1 Answers 6 Views

In a survey of 60 people, it was found that 25 read Newsweek magazine, 26 read Time, 26 read Fortune, 9 read both Newsweek and Fortune, 11 read both Newsweek and Time, 8 read both Time and Fortune and 3 read all magazines. Then number of people who read only Newsweek, Time and Fortune are respectively.?

1 Answers 7 Views

In the following question, two statements are numbered as A and B. On solving these statements, we get quantities A and B respectively. Solve both quantities and choose the correct option. Quantity A: Pipe A takes thrice the time taken by Pipe B to fill a tank. Together they can fill the tank in 15 hours, tank A and B is opened together for 4 hours and then Pipe A is closed and after 2 more hours Pipe B is closed and an outlet Pipe C is opened which when working alone can empty the tank in 10 hours. Calculate the time taken by C to empty the tank. Quantity B: A pipe A can fill the tank in 10 hours another pipe B can fill the tank in 15 hours and with the help of third pipe C they can fill the tank in 5 hours. Pipe A is opened for 4 hours then it is closed, pipe B is closed 3 hours before filling of tank and tank C is opened the whole time. Calculate the time taken to fill the tank?

1 Answers 6 Views

In the following question, two statements are numbered as A and B. On solving these statements, we get quantities A and B respectively. Solve both quantities and choose the correct option. Quantity A: Pipe A takes thrice the time taken by Pipe B to fill a tank. Together they can fill the tank in 15 hours, tank A and B is opened together for 4 hours and then Pipe A is closed and after 2 more hours Pipe B is closed and an outlet Pipe C is opened which when working alone can empty the tank in 10 hours. Calculate the time taken by C to empty the tank. Quantity B: A pipe A can fill the tank in 10 hours another pipe B can fill the tank in 15 hours and with the help of third pipe C they can fill the tank in 5 hours. Pipe A is opened for 4 hours then it is closed, pipe B is closed 3 hours before filling of tank and tank C is opened the whole time. Calculate the time taken to fill the tank.?

1 Answers 12 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)