<u>Answer:</u> The correct answer is heat will flow from the boiling water into the frozen metal.
<u>Explanation:</u>
According to the law of conservation of energy, energy cannot be destroyed nor created but it can be transformed from 1 form to another form.
There are 3 processes of heat transfer:
- <u>Conduction:</u> This type of heat transfer occurs when there is direct contact between the two objects.
- <u>Convection:</u> This type of heat transfer occurs when there is a movement of fluid (liquid or gas) due to the movement of hot layers to the top and cold layers to the bottom which leads to convection currents.
- <u>Radiation:</u> This type of heat transfer occurs when there is a direct transfer of energy through space.
The heat moves from a hot surface to a cold surface to maintain equilibrium.
We are given:
A metal is placed in a freezer (cold object) and another metal is placed in an oven (hot object) and then both the metals are placed in boiling water.
Initially, the heat will flow from the boiling water (hot object) into the frozen metal (cold object) to maintain equilibrium
Hence, the correct answer is heat will flow from the boiling water into the frozen metal.
Ionic compunds are able to conduct electricity when molten/in solution, but not when they are solid
Answer:
O=O bond
Explanation:-
Note it down that the bond having highest Hydrogen enthalpy has strongest bond.
Now
- O=O(495KJ/mol)
- O-O(146KJ/mol)
- O-H(467KJ/mol)
- H-H(432KJ/mol)
Hence
It’s mass number would be 5 as it’s the protons and the neutrons added together
