Answer:
The right choice is "wind power requires a lot of space and depends on local weather patterns "
Explanation:
- solar power produces harmful chemicals
- it is incorrect because solar power doesn't produce any chemicals
2. geothermal power requires more land than other power plants
-
it is incorrect because geothermal power requires digging a stable 5 km-deep shaft not a land
3. nuclear power produces small amounts of energy from large masses
- it is incorrect because nuclear power produces large amounts of energy from small masses.
So the right choice is "wind power requires a lot of space and depends on local weather patterns "
I need the following option
Answer: The heat energy produced is 53831.25KJ
Explanation:
METHANE is the main component of natural gas. It can undergo combustion reaction in air with a bright blue flame to produce carbondioxide and water. The heat of reaction (enthalpy) is negative because heat is absorbed during the chemical reaction. To calculate the heat energy produced by the combustion of one kilogram (1 kg) of methane the following steps are taken:
Molecular mass of methane =16 gm/mol.
So moles of 1 kg methane =
Given mass of methane ÷ molecular weight of methane
But the given mass = 1kg = 1000g
Therefore,
moles of 1000g methane = 1000÷16
= 62.5 moles
Hence, energy evolved = (moles of methane) × (heat of combustion)
Therefore,
heat energy produced= 62.5 × (-861.3kj)
= -53831.25kj
Answer:
. The products are lithium sulfate, Li2SO4 , and water, H2O
Explanation:
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