All categories

4 years ago

Which type of energy transformation is taking place when natural gas is used to heat water?

Chemistry

2 answers:

notsponge [240]4 years ago

8 0

A. chemical energy into thermal energy

tatuchka [14]4 years ago

6 0

The type of energy transformation is taking place when natural gas is used to heat water is chemical energy into thermal energy. For example is the internal combustion engine converts the potential chemical energy in gasoline and oxygen into thermal energy which by causing pressure and performing work on the pistons, is transformed into the mechanical energy that accelerate the vehicle.

You might be interested in

If you eat foods that are compact and _______, more can fit into your stomach with less discomfort.

snow_tiger [21]

The answer my friend is dense and here is why if you compact dense food it becomes even more flat and there is more room for food.

6 0

3 years ago

Read 2 more answers

When the solar system was very young, the sun was just being formed and planets had not yet been made. The solar system was most

andriy [413]

Answer:

Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. ... When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material. At the center, gravity pulled more and more material in.

Explanation:

When the solar system was very young, the sun was just being formed and planets had not yet been made. The solar system was mostly gas and dust.

in conclution its d

Planets formed from small amounts of debris that were attracted together because of gravity.

5 0

3 years ago

Suppose a piece of silver jewelry contains 7.49x10^22 atoms of silver (Ag). how many moles of silver are in the jewelry?

zalisa [80]

Answer:

0.124 mol Ag

General Formulas and Concepts:

Atomic Structure

Moles

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 7.49 × 10²² atoms Ag

[Solve] mol Ag

Step 2: Identify Conversions

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Step 3: Convert

[DA] Set up: $\displaystyle 7.49 \cdot 10^{22} \ atoms \ Ag(\frac{1 \ mol \ Ag}{6.022 \cdot 10^{23} \ atoms \ Ag})$
[DA] Divide [Cancel out units]: $\displaystyle 0.124377 \ mol \ Ag$

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

0.124377 mol Ag ≈ 0.124 mol Ag

Topic: AP Chemistry

8 0

3 years ago

1. Every summer Cheyanne drives to California. It is 3600 km to get there. If she spends 32 hours driving, what is her speed?

qaws [65]

Answer:

Their speed = 69.9043 miles per hour

Their speed = 112.5 kilometers per hour

Explanation:

8 0

3 years ago

Which of the following aqueous solutions will have the lowest freezing point? a. 0.75 m (NH4)3PO4 b. 1.0 m CaSO4 c. 1.0 m LiCl d

Nataly [62]

Answer: a. 0.75m (NH4)3PO4 will have the lowest freezing point .

Explanation: Freezing point decreases as the concentration of the solute substance increases. Assuming the same solvent for all of them, for instance water.

∆T= i.Kf.b

∆T= freezing point depression

i= vant Hoff factor

Kf= molality

Assuming water to be the solvent for all Kf=1.86°C/M

VANT HOFF FACTORS :

For (NH4)3PO4

This has 3 ionic bonding and 1 covalent bonding making it 4 bond

Therefore i=4

For CaSO4

This has 1 metallic bond and 1 covalent bond making it 2 bond.

Therefore i=2

For LiCl

This has 1 metallic bond and 1 non metallic bond making it 2 bond.

Therefore i=2

For CH3OH

This has only 1 covalent bond.

Therefore i=1

MOLALITY:

(NH4)3PO4 = 0.75M

CaSO4= 1.0M

LiCl= 1.0M

CH3OH= 1.5M

FREEZING POINT DEPRESSION:

For (NH4)3PO4

∆T= 4×0.75×1.86=5.58°C

For CaSO4

∆T= 2×1.0×1.86=3.72°C

For LiCl

∆T = 2×1.0×1.86= 3.72°C

For CH3OH

∆T= 1×1.5×1.86=2.79°C

REMEMBER THE HIGHER THE FREEZING POINT DEPRESSION THE LOWER THE FREEZING POINT.

FREEZING POINT DEPRESSION IS THE CHANGE IN THE FREEZING POINT PROPORTIONAL TO THE AMOUNT OF SOLUTE ADDED THE THE SOLUTION.

THEREFORE THE ONE WITH THE LOWEST FREEZING POINT IS (NH4)3PO4

4 0

3 years ago