Question

two different gases at STP have equal volume and equal pressure then they will have same
a). Pressure
b). K.E
C). Mass
D). no of molecules
give the answer with reason

Answer 1

According to modern kinetic molecular theory, gas particles at the same temperature have the same kinetic energy, regardless of the mass of the particle. Therefore, different gases at STP will have the same kinetic energy. Standard temperature is 0 degrees Celsius, 273 Kelvin.

Answer 2

thanks a lot

Answer 3

Wait, wut. Pressure is also an option. ._. That makes no sense.

Answer 4

Can you choose more than one?
@Somy

Answer 5

no it is entry test question

Answer 6

\[PV = nRT\]
If P, V, and T are constant. Then they must have the same number of molecules/moles, pressure, and KE. ;-;

Answer 7

I think its KE also
pressure is kinda off topic, meaning they already said that they have equal pressure in the question

Answer 8

no no not same number of moles or molecules
they are different gases

Answer 9

STP is standard temperature and pressure
thus both temp and pressure would be same for both gases

KE is about temperature
if temp is same for both then KE will be same for both

Answer 10

But P, V, and T are same. They will have the same number of moles. .-.

Answer 11

In his question, he said volume was same.

Answer 12

hmm even so, they didn't say mole is same

Answer 13

you cannot say that mole is same because they said its 2 different gases

Answer 14

According to the Ideal Gas Equation, they would be the same. ._.

Answer 15

PV=nRT ?

Answer 16

Yeah

Answer 17

hmmm kinda makes sense also

Answer 18

n= PV/RT
yeah i guess u r right kinda

Answer 19

This question is lame. ;----;

Answer 20

yeah ~_~

Answer 21

LOL..question has already said they have equal pressure and they have given it in options too !

Answer 22

ikr @Abhisar

Answer 23

so your option really is just the number of moles
PV = nRT

standard pressure

Answer 24

you can have different gases, but the moles can be the same, depending on the amount or quantity we are talking about.

Answer 25

At the same volume and pressure at STP
at STP one mole of gas occupies 22.4 litres, in this case if we have equal volume this means share the same number of moles. they could have the same number of particle but different number of mass.

Answer 26

At a standard temperature and pressure, if you take samples of same quantity of two gases for example hydrogen and oxygen, the following things are going to be the same....firstly Pressure because it says in the question that indeed pressure of both gases is the same and secondly pressure is directly proportional to temperature so as the temperature increases pressure also increases but at a constant temperature and pressure, pressure of both gases should be the same. Second is K.E. because it is directly related to temperature and pressure, for example if you increase the temperature of a gas in a container, the pressure will also increase causing the K.E. of the gas molecules to increase so therefore at a STP the K.E. of both gases has be the same. Thirdly number of molecules of both gases will be the same because it says in the question that the volume of the gases are the same meaning we can assume that the moles of both gases are the same and ultimately the number of gas molecules in both gases are the same because at a STP for every one mol of any gas there are 22.4L if there are 2 moles the volume will be twice as big so therefore the number of molecules will be the same.