Which energy transformation occurs after a sky diver reaches terminal velocity
1 answer:
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Answer:
Explanation:
Here, we want to get the new volume of the gas
What we need to know is the law that connects volume and pressure at constant temperature
The law that supports this is the Boyle's law
It states that the volume of a given mass of gas is inversely proportional to its pressure at constant temperature
Mathematically, we can have this as represented as:
We can proceed mathematically to solve as follows;
Answer:
0.2349 moles, 10.3356 g
Explanation:
The given reaction is :
The balanced reaction by equating the same number of each atom both side is :
Given that :
Amount of oxygen gas = 11.9 g
Molar mass of oxygen gas = 32 g/mol
The formula for the calculation of moles is shown below:
Thus, moles are:
From the reaction,
19 moles of oxygen gas on reaction forms 12 moles of carbon dioxide
Also,
1 mole of oxygen gas on reaction forms 12/19 moles of carbon dioxide
So,
0.3719 moles of zinc on reaction forms mole of carbon dioxide
<u>Moles of carbon dioxide formed = 0.2349 moles</u>
Mass of carbon dioxide = moles×Molar mass
Molar mass of carbon dioxide = 44 g/mol
<u>Mass of carbon dioxide formed = 0.2349 ×44 g = 10.3356 g</u>
Answer : The order of the reaction with respect to water is, zero.
Explanation :
Rate law : It is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.
The given chemical reaction is:
The general rate law expression for the reaction is:
..........(1)
where,
a = order with respect to
b = order with respect to
R = rate law
k = rate constant
As we are given that:
...........(2)
By comparing equation 1 and 2, we get:
a = 1 and b = 0
That means, the rate is depending only on the concentration of tert-butyl chloride.
Hence, the order of the reaction with respect to water is, zero.