Think about the lab procedure you just read. Label each factor below with V for "variable" or C for "constant".

The temperature of the gas:

The amount of gas in the tube (in terms of mass and moles):

The radius of the tube:

The temperature of the gas (changed by the water surrounding it):

The type of gas:

The pressure of the gas:

the temperature of the gas: V

yhe amount of gas in the tube (in terms of mass and moles) : C

the radius of the tube: C

The temperature of the gas (changed by the water surrounding it) : V

the type of gas: C

the pressure of the gas: C

Answer:The temperature of the gas: V

The temperature of gas is a variable quantity. It can be changed by changing energy or pressure of gas.

The amount of gas in the tube (in terms of mass and moles) : C

It is a constant entity. As mass of gas once taken can not be changed by changing temperature, pressure etc.

The radius of the tube: C

The radius of tube cannot change at any rate.

The temperature of the gas (changed by the water surrounding it) : V

It can be changed by changing the temperature of water surrounding it.

The type of gas: C

It can never be changed.

The pressure of the gas: V

It can be changed by simply changing temperature and volume of gas.