Which of these accurately describes the products of a reaction?
2 answers:
Answer: Option (B) is the correct answer.
Explanation:
Reactants are the species which are present on the left hand side of a chemical equation.
On the other hand, products are the species which are present on the right hand side of a chemical equation.
For example,
Here, NaCl and H_{2}O are the reactants whereas NaOH and HCl are the products.
This also means that products are the new substances which are formed.
Thus, we can conclude that new substances that are present at the end of a reaction accurately describes the products of a reaction.
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Answer:
Temperature of the gas molecules is 7.96 x 10⁴ K
Explanation:
Given :
Ions accelerated through voltage, V = 10.3 volts
The work done to change the position of singly charged gas ions is given by the relation :
W = q x V
Here q is charge of the ions and its value is 1.6 x 10⁻¹⁹ C.
Average kinetic energy of gas molecules is given by the relation:
K.E. =
Here T is temperature and k is Boltzmann constant and its value is 1.38 x 10⁻²³ J/K.
According to the problem, the average kinetic energy of gas is equal to the work done to move the singly charged ions, i.e. ,
K.E. = W
Rearrange the above equation in terms of T :
Substitute the suitable values in the above equation.
T = 7.96 x 10⁴ K