Consider the reaction pathway graph below.
2 answers:
<u>Answer:</u> The correct answer is E and D.
<u>Explanation:</u>
is defined as the difference in the total energy of the products to the total energy of the reactants. It is negative for exothermic reactions and positive for endothermic reactions.
Equation used to represent this quantity follows:
From the given graph,
The starting point of the reaction is represented by the line E, which is the energy of the reactants and the ending point of the reaction is represented by the line D which is the energy of the products.
As, the energy of the products is lower than the energy of the reactants. Hence, this reaction is a type of exothermic reactions.
Therefore, the correct answer is E and D.
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Group of answer choices.
A. Distance that sound travels through a solid, a liquid, and a gas.
B. Pitch of sound when it passes through a solid, a liquid, and a gas.
C. Distance sound travels through a solid, a liquid, and a gas at varying temperatures.
D. Time required for sound to travel a set distance through a solid, a liquid, and a gas.
Answer:
D. Time required for sound to travel a set distance through a solid, a liquid, and a gas.
Explanation:
Sound are mechanical waves that are highly dependent on matter for their propagation and transmission.
Sound travels faster through solids than it does through either liquids or gases. A student could verify this statement by measuring the time required for sound to travel a set distance through a solid, a liquid, and a gas.
Mathematically, the time required for sound to travel is given by this formula;
Hence, the time taken for sound to travel through each medium (solid, liquid and gas) would be measured, recorded and compared to one another.
It depends if you are talking about the ones that go up or down
or left and right
the ones that go up and down are called groups
the onesthat go left and right are periods
or left and right
the ones that go up and down are called groups
the onesthat go left and right are periods
Answer:
The molar mass of unknown gas is 145.82 g/mol.
Explanation:
Volume of oxygen gas effused under time t = 8.24 mL
Effusion rate of oxygen gas =
Molar mass of oxygen gas = 32 g/mol
Volume of unknown gas effused under time t = 3.86 mL
Effusion rate of unknown gas =
Molar mass of unknown gas = M
Graham's Law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation: