For the first question, the correct answer would be 44.51 kJ. It is calculated by multiplying the amount of the substance in moles by the heat of the solution. For the second question, the correct answer would be a catalyst causes <span>a lowering the activation energy barrier.</span>
Get a majority of the world to go green
D, in both animals, the infants are hatched from an egg outside the mother.
Answer:
Temperature increase = ΔT = 2.08 °C
Explanation:
Given data:
Energy absorbed by plant = 4200 J
Specific heat capacity of soil = 0.84 J/g°C
Mass of soil = 2400 g
How much temperature increase = ?
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
by putting values,
4200 J = 2400 g ×0.84 J/g°C × ΔT
4200 J = 2016 J/°C × ΔT
ΔT = 4200 J / 2016 J/°C
ΔT = 2.08 °C
<span>C</span>₆<span>H</span>₁₂<span>O</span>₆ + 6 <span>O</span>₂ = 6 <span>CO</span>₂ + 6 <span>H</span>₂<span>O
</span>glucose + oxygen = Carbon Dioxide + Water
combustion <span>reaction
</span>
hope this helps!