First off, you should be looking at the whole world, not just the northeastern US. Are other regions warming? Can you provide proof that simply because the northeast received a lot of snow and low temperatures, climate change is not a viable theory?
Answer:
Methane(CH₄).
Explanation:
- Thomas Graham found that, at a constant temperature and pressure the rates of effusion of various gases are inversely proportional to the square root of their masses.
<em>∨ ∝ 1/√M.</em>
where, ∨ is the rate of diffusion of the gas.
M is the molar mass of the gas.
<em>∨₁/∨₂ = √(M₂/M₁)</em>
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- The molar mass of different choices:
Carbon dioxide: 44.01 g/mol.
Water vapor
: 18.0 g/mol.
Ammonia (NH₃): 17.0 g/mol.
Methane(CH₄): 16.0 g.mol.
<em>Since, methane has the lowest molar mass. So, it will diffuse faster within a system.</em>
In a system, heat that is gained and lost should be conserved. We calculate as follows:
Heat from phase change + sensible heat from the change in tempeture of the ice = sensible heat from the change in temperature of water
mH(fusion) + mCpΔT = mCpΔT
.05 (335) + .050(4.184)( T - 0) = .4 (4.184)(45 - T)
T = 34.8 °C
Answer:
160.18 grams
Explanation:
You find the molar mass which is 68.16 g/mol and multiply that by the number of moles present.
Answer:
A) Copper has a lower activity than hydrogen and cannot replace it.
Explanation:
