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dusya [7]
3 years ago
12

How is the scientific definition of "heat" different from how we use it every day? PLEASE NEED THE ANSWER ASAP

Chemistry
1 answer:
klio [65]3 years ago
3 0
Heat is energy, that can be transferred to another item, which is “less hot”.
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Can you help me please..
Murrr4er [49]

Answer:

Using Charles law of Gas

Explanation:

7 0
3 years ago
The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (C3H8) to
adelina 88 [10]

Answer:

At the burner temp. and pressure, 18.85 litres of air is needed to completely combust each gram of propane

Explanation:

The combustion stoichiometry is as follows:

      C₃H₈ + 5O₂  = 4 H₂O + 3CO₂      The molecular weights (g/mol) are:

MW  44    5x32      4x18    3x44

So each gram of propane is 1/44 = 0.02272 mol propane

and will need 5 x 0.02272 = 0.1136 mol oxygen

At 0.21 mol fraction oxygen in air, 0.1136 / 0.21 = 0.54 mol air is needed to burn the propane.

At the low pressure in the burner we can use the Ideal Gas Law

PV=nRT, or V = nRT/P

P = 1.1 x 101325 Pa = 111457 Pa

T = 195°C + 273 = 468 K

R = 8.314

and we calculated n = number of moles air = 0.54 mol

So V m³ = 0.54 x 8.314 x 468 / 111457 = 0.0188 m³ = 18.85 litres air.

6 0
3 years ago
The number of protons in an atom is known as its atomic
Fynjy0 [20]
Atomic number should be the answer
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The chemical symbol for sodium is
serg [7]
Sodium- Na
most active element- Fluorine
lightest element- Hydrogen
7 0
3 years ago
This type of chemical bond forms when electrons are either gained or lost by an atom.
Ket [755]
It's ionic because electrictrons are only lost or gained in ionic bonds
5 0
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