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Mazyrski [523]
3 years ago
13

Cell theory has 3 parts what are the 3?

Chemistry
2 answers:
KengaRu [80]3 years ago
3 0

Answer:

A. All living things are made of cells

B. The cell is a basic unit of life and found

C. All cells come from other cells

Explanation:

plz mark me as brainliest

rodikova [14]3 years ago
3 0

Answer:

(1) All living things are made up of cells, (2) Cells are the smallest units (or most basic building blocks) of life, and (3) All cells come from preexisting cells through the process of cell division.

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nikitadnepr [17]
The ansewr is A i would guess

7 0
3 years ago
An ideal gas (C}R), flowing at 4 kmol/h, expands isothermally at 475 Kfrom 100 to 50 kPa through a rigid device. If the power pr
Zina [86]

<u>Answer:</u> The rate of heat flow is 3.038 kW and the rate of lost work is 1.038 kW.

<u>Explanation:</u>

We are given:

C_p=\frac{7}{2}R\\\\T=475K\\P_1=100kPa\\P_2=50kPa

Rate of flow of ideal gas , n = 4 kmol/hr = \frac{4\times 1000mol}{3600s}=1.11mol/s    (Conversion factors used:  1 kmol = 1000 mol; 1 hr = 3600 s)

Power produced = 2000 W = 2 kW     (Conversion factor:  1 kW = 1000 W)

We know that:

\Delta U=0   (For isothermal process)

So, by applying first law of thermodynamics:

\Delta U=\Delta q-\Delta W

\Delta q=\Delta W      .......(1)

Now, calculating the work done for isothermal process, we use the equation:

\Delta W=nRT\ln (\frac{P_1}{P_2})

where,

\Delta W = change in work done

n = number of moles = 1.11 mol/s

R = Gas constant = 8.314 J/mol.K

T = temperature = 475 K

P_1 = initial pressure = 100 kPa

P_2 = final pressure = 50 kPa

Putting values in above equation, we get:

\Delta W=1.11mol/s\times 8.314J\times 475K\times \ln (\frac{100}{50})\\\\\Delta W=3038.45J/s=3.038kJ/s=3.038kW

Calculating the heat flow, we use equation 1, we get:

[ex]\Delta q=3.038kW[/tex]

Now, calculating the rate of lost work, we use the equation:

\text{Rate of lost work}=\Delta W-\text{Power produced}\\\\\text{Rate of lost work}=(3.038-2)kW\\\text{Rate of lost work}=1.038kW

Hence, the rate of heat flow is 3.038 kW and the rate of lost work is 1.038 kW.

4 0
2 years ago
How are radio waves transmitted
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Attractive antennas that pull the waves tword it.
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3 years ago
(01.06 LC)
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Answer:

Gravitational potential energy

Because

1. It's due to position so it's potential energy

2. Potential energy due to height is gravitational potential energy

8 0
3 years ago
1. Ionization energy is the energy needed to remove an electron from an atom. We can use the periodic table to predict ionizatio
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Ionization energy increases from left to right because the left wants to lose elctrons and the right wants to gain electron

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Mg2,2 very reactive

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3 years ago
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