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il63 [147K]
3 years ago
13

Which of the following is not a factor in whether a reaction will spontaneously occur? A. Entropy change of the system B. Enthal

py change of the system C. Temperature of the system D. Pressure change of the system
Physics
1 answer:
Delvig [45]3 years ago
6 0

Answer:

D

Explanation:

pressure change have nothing to do with the spontaneity.

Entropy change , enthalpy change , temperature have roles in deciding spontaneity.

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A 0.1ohm resistor has power rating 5w. is the resistor safe when conducting a current of 10A.​
astra-53 [7]

Answer:

1.5 Amp is rated for 5 W so it would not be possible

7 0
3 years ago
A coil 3.85 cm radius, containing 450 turns, is placed in a uniform magnetic field that varies with time according to B=( 1.20×1
Nimfa-mama [501]

Answer:

0.025V + (0.000218V/s³) t³

Explanation:

Parameters given:

Radius of coil, r = 3.85 cm = 0.0385 m

Number of turns, N = 450

Magnetic field, B = ( 1.20×10^(−2) T/s )t + (2.60×10^(−5) T/s4 )t^4.

The magnitude of Induced EMF is given as:

E = N * A * dB/dt

Where A is the area of the coil

First, we differentiate the magnetic field with respect to time:

dB/dt = 0.012 + 0.000104t³

Therefore, EMF will be:

E = 450 * 3.142 * (0.012 + 0.000104t³)

E = 2.096(0.012 + 0.000104t³)

E = 0.025V + (0.000218V/s³)t³

6 0
3 years ago
Read 2 more answers
3. At an early age, what happened to Cesar’s home?
Doss [256]

Answer: He died later in 78 BC and was accorded a state funeral. Hearing of Sulla's death, Caesar felt safe enough to return to Rome. Lacking means since his inheritance was confiscated, he acquired a modest house in the Subura, a lower-class neighbourhood of Rome. hope this helps. Can u give me brainliest

Explanation:

3 0
3 years ago
9. Rob Colley set a record in “pole-sitting" when he spent 42 days in a barrel at the
Vsevolod [243]

Answer:

3 sec

Explanation:

T=squareroot((2*-43)/-9.81)

4 0
3 years ago
A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (25 degrees C) a
Sphinxa [80]

Answer:

 \eta=0.067

Explanation:

Given that

Temperature of warm water ,T₁ = 25 °C

Temperature of cold water ,T₂ = 5 °C

The maximum possible efficiency of any heat is will be same as the efficiency of the Carnot heat engine.Therefore the maximum efficiency of OTEC system is given as follows

\eta=1-\dfrac{T_2}{T_1}      

T should be Kelvin scale

Now by putting the values

\eta =1-\dfrac{5+273}{25+273}

\eta=0.067

Therefore the maximum efficiency will be 0.067 or 6.7%.

8 0
3 years ago
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