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bija089 [108]
3 years ago
7

How are t cells and b cells same

Chemistry
2 answers:
marissa [1.9K]3 years ago
6 0
They both attack invaders
tigry1 [53]3 years ago
5 0
T cells and B cells are similar because they both deal with fighting of viruses.
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The vaporization of 1 mole of liquid water (system) at 100.9 C, 1.00 atm, is endothermic.
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Answer:

a) The work done is 10.0777 kJ

b) The water's change in internal energy is -122.1973 kJ

Explanation:

Given data:

1 mol of liquid water

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P = pressure = 1 atm

Endothermic reaction

T₂ = temperature = 100°C

1 mol of water vapor

VL = volume of liquid water = 18.8 mL = 0.0188 L

VG = volume of water vapor = 30.62 L

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Q = heat added to the system = -40.7 kJ

Questions: a) Calculate the work done on or by the system, W = ?

b) Calculate the water's change in internal energy, ΔU = ?

Heat for 3.25 moles:

Q_{1} =3.25*(-40.7)=-132.275kJ

The work done:

W=-nP*delta(V)=-3.25*101.33*(0.0188-30.62)=10077.6637J=10.0777kJ

The change in internal energy:

delt(U)=W+Q_{1} =10.0777-132.275=-122.1973kJ

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