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Digiron [165]
3 years ago
13

Many people have a tendency to think that heat and temperature are the same thing. However, this is not true. Heat describes A.

energy that flows from warmer objects to cooler objects. B. the average amount of energy possessed by an object due to the potential energy stored in its bonds. C. the average amount of energy possessed by an object due to the motion of its particles. D. energy that flows from cooler objects to warmer objects.
Chemistry
2 answers:
enyata [817]3 years ago
7 0

The correct answer is actually  

B) energy that flows from warmer objects to cooler objects.

because temperature is a measure of the average amount of energy possessed by an object due to the random motions of its particles.  Heat is the energy that flows from warmer objects to cooler objects. Heat cannot flow in the opposite direction.

dimaraw [331]3 years ago
5 0

Answer:

A. energy that flows from warmer objects to cooler objects

Explanation:

Temperature is a measure of the average amount of energy possessed by an object due to the random motions of its particles.

Heat is the energy that flows from warmer objects to cooler objects. Heat cannot flow in the opposite direction.

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Which of the following can best be described as speed plus direction?A: AccelerationB: DecelerationC: FrictionD: Velocity
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3 0
3 years ago
Be sure to answer all parts.
MrRissso [65]

Answer: The molarity of each of the given solutions is:

(a) 1.38 M

(b) 0.94 M

(c) 1.182 M

Explanation:

Molarity is the number of moles of a substance present in liter of a solution.

And, moles is the mass of a substance divided by its molar mass.

(a) Moles of ethanol (molar mass = 46 g/mol) is as follows.

Moles = \frac{mass}{molar mass}\\= \frac{28.5 g}{46 g/mol}\\= 0.619 mol

Now, molarity of ethanol solution is as follows.

Molarity = \frac{moles}{Volume (in L)}\\= \frac{0.619 mol}{4.50 \times 10^{2} \times 10^{-3}L}\\= 1.38 M

(b) Moles of sucrose (molar mass = 342.3 g/mol) is as follows.

Moles = \frac{mass}{molar mass}\\= \frac{21.6 g}{342.3 g/mol}\\= 0.063 mol

Now, molarity of sucrose solution is as follows.

Molarity = \frac{moles}{Volume (in L)}\\= \frac{0.063 mol}{0.067 L}  (1 mL = 0.001 L)\\= 0.94 M

(c) Moles of sodium chloride (molar mass = 58.44 g/mol) are as follows.

Moles = \frac{mass}{molar mass}\\= \frac{6.65 g}{58.44 g/mol}\\= 0.114 mol

Now, molarity of sodium chloride solution is as follows.

Molarity = \frac{moles}{Volume (in L)}\\= \frac{0.114 mol}{0.0962 L}\\= 1.182 M

Thus, we can conclude that the molarity of each of the given solutions is:

(a) 1.38 M

(b) 0.94 M

(c) 1.182 M

4 0
3 years ago
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