Answer:
D
Explanation:
pressure change have nothing to do with the spontaneity.
Entropy change , enthalpy change , temperature have roles in deciding spontaneity.
Explanation:
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AnsweR
D
Explanation:
beaker B becz of increased surface area
Answer:
a) 4500 cycles b) 0.0667s c) 6.67s
Explanation:
a) 15 Hz= 15 cycles/ s
5 mins= 300s
15 cycles/s * 300s= 4500 cycles
b) Period= 1/ frequency
Period= 1/ 15 cycles/s
Period= 0.0667s
c) Period * number of revolutions= time
0.0667 * 100= 6.67s
Answer:

Explanation:
The energy, E, from a capacitor, with capacitance, C, and voltage V is:


If we increase the Voltage, the Energy increase also:


The voltage difference:

