During a phase change, the temperature remains constant. obviously all the heat is used in phase transformation.
Answer:



Explanation:
By definition
, so we can calculate the total charge that went through the filament since we know the electric current and the time. If the charge of one electron is e, then the total charge will be given by Q=Ne. Combining these equations we get the number of electrons as:

Since the resistivity of tungsten (W) is
, then resistance can be calculated using the formula:

Where we already obtained the radius from the diameter. Finally the Voltage will be given by the formula:

Answer:

Explanation:
we can solve this problem by using the first law of thermodynamics.

Q= heat added
U= internal energy
W= work done by system

<u>
(1)</u>


now
From equation 1



Coronal Mass ejections or Solar ejections are activities on the surface of the sun termed to the reaction of the gas composition of the sun's surface attributing to explosion of these gases. One example most commonly known as Solar Flares, and another example is termed as erupting prominence.