Hydrogen gas can be produced by reacting a mixture of methane and steam in the presence of a nickel catalyst.
The reaction conditions are a temperature of 700° C and a pressure of 5 atmospheres.
The equation for the reaction is
CH4(g) + H2O(g) = CO(g) + 3H2(g)
(delta)H = +206 kJ/mol
(a) Calculate the volume, in dm^3, of hydrogen gas at rtp that is produced when
10 tonnes of methane gas completely react with steam.
(molar volume of hydrogen at rtp is 24 dm^3)
Give your answer in standard form.

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j

hi my dude or dudette

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.