Natural gas, or methane, is an important fuel. combustion of one mole of methane releases 802.3 kilojoules of energy. how much energy does that represent in kilocalories?

191.7497 Kilocalories

Explanation:

Step 1:

Data obtained from the question:

Energy released = 802.3KJ

Step 2:

Conversion of the energy released in kilojoules to kilocalories. This is illustrated below:

1 KJ = 0.239 kilocalorie

Therefore, 802.3 KJ = 802.3 x 0.239 = 191.7497 Kilocalories

From the calculation above, 802.3 KJ is equivalent to 191.7497 Kilocalories

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.