NOVELTY - A gas-generating apparatus (12) comprises fluid conduit (38) disposed at least partially within first fuel container, where fluid conduit pierces the divider to form fluid flow path for introducing the fluid fuel component into second fuel component, where fluid conduit is movable, where movement of the fluid conduit allows the fluid fuel component is introduced into locations within the second fuel component, where first fuel container comprises fixed end (34) and movable end (36), and where the fluid conduit is attached to the movable end of the first fuel container.    USE - As gas-generating apparatus used in fuel cartridges or hydrogen generators for fuel cells.    ADVANTAGE - The apparatus effectively control the reaction rate between the chemical metal hydride and liquid reactant.    DETAILED DESCRIPTION - A gas-generating apparatus (12) comprises a first fuel container (18) containing a fluid fuel component (28) and space containing a compressible gas; a second fuel container (20) separated from the first fuel container by a divider (24), where the second fuel container contains a second fuel component (26), where the fluid fuel component reacts with the second fuel component to produce a gas; at least one fluid conduit (38) disposed at least partially within the first fuel container, where the fluid conduit pierces the divider to form a fluid flow path for introducing the fluid fuel component into the second fuel component, where the fluid conduit is movable, where movement of the fluid conduit allows the fluid fuel component is introduced into locations within the second fuel component, where the first fuel container comprises fixed end (34) and movable end (36), and where the fluid conduit is attached to the movable end of the first fuel container.    DESCRIPTION OF DRAWING(S) - The figure shows a cutaway side view of fuel supply.    Gas-generating apparatus (12)    First fuel container (18)    Second fuel container (20)    Divider (24)    Divider (28)    Fixed end (34)    Movable end (36)