[chabo21]

Hi, here's the qs:
The fuel supply for a course-correcting rocket engine on a communications satellite is contained in a steel sphere.  The volume of the sphere is 10.0L.  The sphere is able to deliver 1400L of gas at room temperature (25C) and 101.3kPa.  Calculate the pressure that the sphere can withstand if the normal operating temperature of the sphere is -10C.

I am not sure if i should use the combined gas law? I though maybe I should use gay-lussac's Law...
It's says the volume of the sphere is 10.0, but then it says the volume of gas it can deliver is 1400L at room temp...how is that possible?

-Please can someone provide a solution to this! Thanks 

[Borek]

It's says the volume of the sphere is 10.0, but then it says the volume of gas it can deliver is 1400L at room temp...how is that possible?

That's because it is pressurized. At the same time that's the information needed to calculate amount of gas present. Not that it is necessary, combined should do.

[chabo21]

It's says the volume of the sphere is 10.0, but then it says the volume of gas it can deliver is 1400L at room temp...how is that possible?

That's because it is pressurized. At the same time that's the information needed to calculate amount of gas present. Not that it is necessary, combined should do.

-so would the final volume be 10.0L and the inital volume 1400L?

[Borek]

Yes.