Answer:
The reaction is not in equilibrium and moves to the left until Q equals Kc.
Explanation:
Hello!
First we must check that the equation is balanced.
We propose the constant Kc for the balanced equation.
We propose Q for the balanced equation.
We calculate the value of Q and compare with Kc
If Q = Kc the reaction is in equilibrium.
If Q> Kc the reaction moves from right to left.
If Q <Kc the reaction shifts from left to right.
We obtain the value of Kc from the value of Kp. If the variation of mol is zero Kp = Kc
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Answer:
72·45 °C
Explanation:
Given
Mass of sample of aluminum is 500·0 g
Initial temperature is 25·0 °C = 298 K
Heat absorbed from surroundings is 32·60 kJ
Heat capacity of aluminum is 0·9 J/g K
Formula for amount of heat transfer is
<h3>Q = m × s × ΔT</h3>
where
Q is the amount of heat transfer
m is the mass of the substance
s is the heat capacity of the substance
ΔT is the change in temperature
Let the final temperature be T K
∴ 32·60 × 1000 = 500 × 0·9 × (T - 298)
T - 298 = 72·45
∴ T = 370·45 K = (370·45 - 298) °C = 72·45 °C
∴ Final temperature is 72·45 °C
Answer:
Non-renewable resources, such as coal and oil, are the primary source of power in the world, and they are used to power vehicles, factories, and homes. Although affordable, they can be harmful to the environment and are one of the notable contributors to global warming.
Explanation:
source:cfi