Answer: 0.27L
Explanation:
Given that,
Original volume V1 = 400.0 mL
convert volume in milliliters to liters
(If 1000mL = 1L
400.0 mL = 400.0/1000 = 0.4 L)
Original temperature T1 = 22.0 °C
Convert temperature in Celsius to Kelvin
(22.0 °C + 273 = 295K)
Original pressure = 1000mmHg
Convert pressure of 1000mmHg to atm
(If 760mmHg = 1 atm
1000mmHg = 1000/760 = 1.316 atm)
New volume V2 = ?
New Temperature T2 = 30.0°C
(30.0°C + 273 = 303K)
New pressure P2 = 2 atm
Since pressure, volume and temperature are involved, apply the general gas equation
(P1V1)T1 = (P2V2)/T2
(1.316 atm x 0.4 L) /295K = (2 atm x V2) /303K
0.526 atmL / 295K = 2V2 / 303K
Cross multiply
0.526 atmL x 303K = 2V2 x 295K
159.47 = 590V2
Divide both sides by 590
159.47/590 = 590V2/590
0.27 L = V2
Thus, the final volume of the gas is 0.27L
Answer:
a: chemical change because the change cannot be reversed.
b: physical change because the action can be reversed.
c: chemical change.
d:chemical change.
any change that cannot be reversed is a chemical change and any change that can be reversed is a physical change.
Answer:
air, water, sunlight
Explanation:
A limiting factor may be defined as a environmental condition or a resource that can limit the plant growth as well as distribution or the abundance of an organism or its population within the ecosystem. The ability of any plant species to grow and spread throughout any geographic area is the direct result of the adaption to its biotic and abiotic components of that region.
Some of the factor that affect the plant growth are : sunlight, air, proper temperature, moisture, nutrients, wind,etc.
The lack of the any one of the above essential component will determine the health of the plant.
The correct answer is D
a polymer is a substance made up of large molecules with repeating sub units called monomers.
A is incorrect because its a ring structure which means it cannot form the long chain that is exhibited by polymers.
B is incorrect because the double bonds will cause saturation, hence no monomer can bond to another monomer to form the large molecule.
C is incorrect because the large molecule has repeating sub-units hence only specific types of molecules can be present, and it is usually carbon and hydrogen.
