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3 years ago

A diagram used to show inheritance patterns and to predict the genotypes of offspring

Chemistry

1 answer:

zzz [600]3 years ago

7 0

Answer:

A Punnett square

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A 100 W light bulb is placed in a cylinder equipped with a moveable piston. The light bulb is turned on for 2.0×10−2 hour, and t

drek231 [11]

Answer:

(a) ΔU = 7.2x10²

(b) W = -5.1x10²

(c) q = 5.2x10²

Explanation:

From the definition of power (p), we have:

$p = \frac {\Delta W}{\Delta t} = \frac {\Delta U}{\Delta t}$ (1)

where, p: is power (J/s = W (watt)) W: is work = ΔU (J) and t: is time (s)

(a) We can calculate the energy (ΔU) using equation (1):

$\Delta U = p \cdot \Delta t = 100 \frac{J}{s} \cdot 2.0\cdot 10^{-2} h \cdot \frac{3600s}{1h} = 7.2 \cdot 10^{2} J$

(b) The work is related to pressure and volume by:

$\Delta W = -p \Delta V$

where p: pressure and ΔV: change in volume = V final - V initial

$\Delta W = - p \cdot (V_{fin} - V_{ini}) = - 1.0 atm (5.88L - 0.85L) = - 5.03 L \cdot atm \cdot \frac{101.33J}{1 L\cdot atm} = -5.1 \cdot 10^{2} J$

(c) By the definition of Energy, we can calculate q:

$\Delta U = \Delta W + \Delta q$

where Δq: is the heat transfer

$\Delta q = \Delta U - \Delta W = 7.2 J - (-5.1 \cdot 10^{2} J) = 5.2 \cdot 10^{2} J$

I hope it helps you!

6 0

4 years ago

Eşit kütlede ve özdeş kaplarda bulunan Alkol ve Suyun buhar basınçlarını eşitlemek için ne yapmalıyız?

Digiron [165]

i dont quite understand

7 0

3 years ago

Ruben slides a book across the floor. Eventually the book will stop moving.

Andreas93 [3]

The answer is B: friction.

A definition of friction is a resistance of an object against another, for example a tire against mud, the tire would add friction against the mud to pull away from it.

I don’t need brainliest but please just mark thanks to this answer that would help me a lot, have a nice day :)

7 0

3 years ago

The vapor pressure of ethanol at its normal boiling point would be

Galina-37 [17]

The normal boiling point of ethanol is 78.4 degrees C and, at thistemperature, the vapor pressure is 101325 Pascals (Pa) or 760manometric units

thx hope this helped bye.

4 0

3 years ago

A copper metal bar that has only copper atoms in it

Jet001 [13]

What’s the question???

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3 years ago