A.134 sorry if it’s wrongggg
Answer
C. Difference in temperature
Explanation
According to thermodynamics, heat transfer occurs when heat from a high temperature reservoir moves to a low temperature reservoir. For heat to be transferred, the two objects should have different temperatures with one having more temperature than the other. Heat transfer in solids is by conduction, in fluids is by convection and by radiation.
Answer:
Number 4
Explanation:
There are more in the line
Answer:
The half cell reaction when it used as an anode
H₂(g) → 2 H⁺ + 2 e⁻
Explanation:
Standard hydrogen electrode used as reference electrode & acts as an cathode as well as anode half cell.
The half cell reaction when it used as an anode
H₂(g) → 2 H⁺ + 2 e⁻
(Pressure should be 1 bar , temperature 273 k and concentration of HCl = 1 Molar)
Cell representation
H₂(g) , H⁺(1 M)
The standard electrode potential i.e oxidation as well as reduction = 0.00 V
Answer: B) The identity of the solvent
Explanation:
Basically, the solvent is the liquid in which a solute is dissolved in. But the solute is the material to be dissolved.
Now in this case, the solute in the first solution is glucose and the solute in the second solution is an unidentified covalent solid material.
This means that:
• the identity of the solute cannot be identical in each solutions, which also means that the freezing points and densities of the solutions cannot be identical too.
• the only thing that is sure to be identical in the solution is the identity of the solvent.