Answer:
The value is 
Explanation:
From the question we are told that
The half life of
is
The initial concentration is
The time duration is 
Generally the rate constant is mathematically represented as



This rate constant is also mathematically represented as

Here A is the remaining concentration after t
So






The transfer of heat by the mass movement of heated particles into an area of cooler fluid
Answer:
82.6 moles
Explanation:
chemical equation:
CO2+ 4H2 → CH4 + 2H2O
Given data:
moles of carbon dioxide = 82.6 mol
moles of methane = ?
through the balanced chemical equation we will compare the moles carbon dioxide with methane
CO2 : CH4
1 : 1
82.6 : 82.6
we are given hydrogen so 82.6 moles of carbon dioxide will produce 82.6 moles of methane.
Any of the Halogens (second to last vertical column going down)