Carl hits a baseball with a force of 8 N. The next batter, Stacy, hits it with 12 N of force. Which ball will accelerate faster?
1 answer:
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Answer : The standard enthalpy change for the combustion of CO(g) is, -283 kJ/mol
Explanation :
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.
The combustion of will be,
The intermediate balanced chemical reaction will be,
(1)
(2)
Now we are reversing reaction 1 and then adding both the equations, we get :
(1)
(2)
The expression for enthalpy change for the reaction will be,
Therefore, the standard enthalpy change for the combustion of CO(g) is, -283 kJ/mol
Answer:
<h2>The answer is 4 m/s²</h2>Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
where
a is the acceleration
f is the force
m is the mass
From the question
f = 20 N
m = 5 kg
We have
We have the final answer as
<h3>4 m/s²</h3>Hope this helps you