Question

Sensors detect the concentration of mercaptan molecules in natural gas at various distances from a leaking source. At which location will a sensor detect the highest concentration of mercaptan?

Answer 1

one-half meter in front of the source?

Answer 2

@Somy

Answer 3

hmmm it does sound right
if you picture sensor as a wall
if molecules are closer to the wall they are all detected while the ones at bigger distance from it - cannot be detected can they?

Answer 4

nope

Answer 5

alright thank you ^.^

Answer 6

no problem :)

Answer 7

can I ask one more and I'll stop bothering you lol

Answer 8

You place a balloon in a closed chamber at standard temperature and pressure (STP). You double the chamber pressure. What happens to the balloon?

Answer 9

lol its okay go ahead :)

Answer 10

this are the options
It expands to four times its volume.

It stays the same volume.

It doubles in volume.

It decreases in volume by one-half.

Answer 11

but I think it double in volume

Answer 12

PV=nRT
lets make nR as subject so that we get the P,V and T on one side
nR= PV/T
so initially its
PV/T
but then they doubled the P so
2PV/T

Answer 13

now in the options they talk about volume so lets make volume as subject in case if you dont get it here
V= nRT/P
V=nRT/2P
what do you see here

Answer 14

initially nRT was divided by P and it was equal to V
but now P is doubled!
so nRT is divided by DOUBLE of P - in other words a bigger number
so what will happen to V?

Answer 15

is doubled :)

Answer 16

no
look
its DIVIDED
by INCREASED P value

Answer 17

Ex.
2/2 = 1
2/4 = ?

Answer 18

1/2

Answer 19

bingo!

Answer 20

so it decreased by a bigger value than itself therefore leading to an increase which means that A is the answer?

Answer 21

sorry I meant D

Answer 22

right! if you did mean D lol

Answer 23

lol I did xD thank you! again xD

Answer 24

you are welcome :))