All categories

3 years ago

When you apply heat energy to a substance, where does the energy go? Think about the law of conservation of energy.

1 answer:

7 0

The energy is transformed into kinetic energy which makes the substance to move. The law of conservation of energy which is the first law of thermodynamics states that in a closed system energy can neither be created nor destroyed but can change from one form to another

You might be interested in

Please help me, I really don't want to fail but I don't know how to do this

Brrunno [24]

Answer:

<u>12 moles</u>

Explanation:

$NH_{3}(g) + O_{2}(g) \: → NO_{2} + H_{2}O(g)$

__↑______↑

8.00 mol | 14.00 mol

________________

$NH_{3}(g) + O_{2}(g) \: → NO_{2} + H_{2}O(g)$

You can turn this into a system of variables which are solvable.

To do this, create variables for the coefficients of each compound in the reaction respectively.

$a(NH_{3}(g)) + b(O_{2}(g)) → \\c(NO_{2}) + d(H_{2}O(g))$

Because to be balanced, the count of atoms in each element of the compound correspond to the coefficient of the variable in that compound so that the count of the left (reactant) side is set equal to the right (product) side.

a corresponds to the coefficient of the first compound, b corresponds to the coefficient of the second compound, c corresponds to the coefficient of the third compound, and d corresponds to the coefficient of the fourth compound.

(Reactant = Product)

Reactant: 1a [N] Product: 1c.

Reactant: 3a [H] Product: 2d.

Reactant: 2b [O] Product: 2c + 1d.

Thus the system is:

1a = 1c

3a = 2d

2b = 2c + 1d.

Then just use the substitution methods to solve.

3 0

3 years ago

An unknown element X has the following isotopes: ⁵²X (79.50% abundant), ⁴⁹X (8.00% abundant), ⁵⁰X (12.50% abundant). What is the

Verizon [17]

Answer:

51.51 amu .

Explanation:

The atomic mass 52 amu has percentage of 79.5%

The atomic mass 49 amu has percentage of 8%

The atomic mass 50 amu has percentage of 12.5 %

Average atomic pass will be weighted average of their atomic weights

= 52 x .795 + 49 x .08 + 50 x .125

= 41.34 + 3.92 + 6.25

= 51.51 amu .

4 0

3 years ago

How could gamma rays,for example change something irreversibly

coldgirl [10]

They emit radiation. Which can be very harmful to living things, as well as some non living things. I hope i answered you question :)

5 0

4 years ago

Read 2 more answers

The brain receives information as ___

Svetradugi [14.3K]

Answer:

C sound waves

Explanation:

Information processing starts with input from the sensory organs, which transform physical stimuli such as touch, heat, sound waves, or photons of light into electrochemical signals. The sensory information is repeatedly transformed by the algorithms of the brain in both bottom-up and top-down processing.

8 0

4 years ago

Read 2 more answers

Help me plssssssssss

sweet-ann [11.9K]

Answer:

The answer for this selection is 4

Explanation:

7 0

3 years ago