after a fire, the ashes have less mass and take up less space than the trees and vegataion before the fire. how can this be explained in terms of the Law of Conservation of mass?
Answers
The calories or therms of a fire equal a certain amount of mass.
When MATTER (Electron) and ANTI-MATTER (Positron) collide they don't inhillate each other with nothingness, they always realse TWO gamma particles.
The ENERGY of the TWO gamma particles CONSERVES the MASS of the ELECTRON and The POSITRON
This is what Einstein meant by E=mc2
ENERGY has physical properties than can be measured.
These properties equal the mass that no longer exists after you measure the mass BEFORE and AFTER
The AFTER MASS + the ENERGY MUST equal the BEFORE MASS to at least 99.999%
You must take heat, light and other PARTICLES into consideration.
Their MASS plus their ENERGY
Answer:
this can be explained in terms of the Law of Conservation of mass because you just have to multiply the number of amount that was lost during the fire by 5
Explanation:
so if they lost 489 miles of mass from the fire, then u will have to multiply 489 by 5. 489x5=2445
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They migrate only with one another.
B.
They fight only with one another.
C.
They share food only with one another.
D.
They reproduce only with one another.
Answers
Answers
Answer:
Autotrophs
Explanation:
Autotrophs make their own food, or produce food for themselves through the process of photosynthesis. Therefore, we can say that autotrophs are also producers. Some examples of producers are plants, algae, and some types of bacteria.
Answers
Answer:
The pressure of the gas is 2.11 atm.
Explanation:
From the given,
Therefore, The pressure of the gas is 2.11 atm.
Final answer:
Boyle's law is used to find the new pressure after the gas is compressed from 1.00 L to 0.473 L. The original pressure is 1 atm at Standard Temperature and Pressure (STP). After the compression, the new pressure is approximately 2.12 atm.
Explanation:
The question relates to gas laws, specifically Boyle's law, which states that the pressure of a gas is inversely proportional to its volume when the temperature and amount of gas are held constant. At Standard Temperature and Pressure (STP; 273.15 K and 1 atm), one mole of an ideal gas occupancies a volume of about 22.4 L. In this case, the initial conditions are at STP, with a gas volume of 1.00 L, equating to a pressure of 1 atm. When this volume is compressed to 473 mL (or 0.473 L), the pressure can be determined using Boyle's law, i.e., P1V1 = P2V2. After substituting the values, we can solve for the new pressure (P2) which will be approximately 2.12 atm.
Learn more about Boyle's Law here:
#SPJ3
Answers
Answer:
3718.628 kPa.
Explanation:
- We can use the general law of ideal gas: PV = nRT.
where, P is the pressure of the gas in atm (P = ??? atm).
V is the volume of the gas in L (V = 2.0 L).
n is the no. of moles of the gas in mol (n = 3.0 mol).
R is the general gas constant (R = 0.0821 L.atm/mol.K),
T is the temperature of the gas in K (T = 298.0 K).
∴ P = nRT/V = (3.0 mol)(0.0821 L.atm/mol.K)(298.0 K)/(2.0 L) = 36.7 atm.
- To convert from atm to kPa:
∵ 1.0 atm = 101.325 kPa.
∴ P = (36.7 atm)(101.325 kPa/1.0 atm) = 3718.628 kPa.
100 degrees C
c.
-183 degrees C
b.
-253 degrees C
d.
0 degrees C
Answers
Answer:
- The hydrogen exist as a liquid at -253 degree C.
Explanation:
- Hydrogen is found as a molecular form H2. In order to become liquid , it must be cooled below its critical temperature. It become liquid at -253 degree C or 423.17 degree F or 20.8 K.
- So hydrogen become liquid at -253 degree Celsius.
Answers
Answer:
Factors that influence flow :
Flow patterns in a fluid (gas or liquid) depend on three factors: the characteristics of the fluid, the speed of flow, and the shape of the solid surface. Three characteristics of the fluid are of special importance: viscosity, density, and compressibility. Viscosity is the amount of internal friction or resistance to flow. Water, for instance, is less viscous than honey, which explains why water flows more easily than does honey.
All gases are compressible, whereas liquids are practically incompressible; that is, they cannot be squeezed into smaller volumes. Flow patterns in compressible fluids are more complicated and difficult to study than those in incompressible ones. Fortunately for automobile designers, at speeds less than about 220 miles (350 kilometers) per hour, air can be treated as incompressible for all practical purposes. Also, for incompressible fluids, the effects of temperature changes can be neglected.