suchita is going to make an energy transfer diagram to represent the energy transformations associated with…

suchita is going to make an energy transfer diagram to represent the energy transformations associated with the flame of a gas stove. the diagram will show that the chemical energy of the fuel transforms into 50 j of chemical energy, 400 j of heat, and 200 j of light. which statement describes suchitas final diagram? the initial chemical energy is 50 j. the arrow for heat is the widest output arrow. the arrow for chemical energy is the shortest output arrow. there is one arrow for input and one for output.

suchita is going to make an energy transfer diagram to represent the energy transformations associated with the flame of a gas stove. the diagram will show that the chemical energy of the fuel transforms into 50 j of chemical energy, 400 j of heat, and 200 j of light. which statement describes suchitas final diagram? the initial chemical energy is 50 j. the arrow for heat is the widest output arrow. the arrow for chemical energy is the shortest output arrow. there is one arrow for input and one for output.

Answer

Explanation:

Step1: Analyze energy - transfer concept

In an energy - transfer diagram for a gas stove, the input is the chemical energy of the fuel. The outputs are heat and light energy. The chemical energy of the fuel is transformed into other forms of energy. The total initial chemical energy of the fuel is the sum of the chemical energy remaining, heat energy, and light energy. So, the initial chemical energy is (50 + 400+200=650\ J). The heat energy output is (400\ J), light energy output is (200\ J), and remaining chemical energy is (50\ J). Since heat energy ((400\ J)) is the largest among the output energies, the arrow for heat will be the widest output arrow.

Step2: Evaluate each option

  • Option 1: The initial chemical energy is (50 + 400 + 200=650\ J), not (50\ J).
  • Option 2: Since heat energy ((400\ J)) is the largest output energy, the arrow for heat is the widest output arrow. This is correct.
  • Option 3: The arrow for chemical energy ((50\ J)) is not the only output arrow, and we cannot say it is the shortest without comparing to other output arrows in a proper - scaled diagram. Also, heat and light are the main outputs, and the remaining chemical energy is a small part, but we are mainly concerned with the relative widths of output arrows based on energy amounts, and heat is the largest output.
  • Option 4: There is one input (chemical energy of fuel) but two outputs (heat and light), so this is incorrect.

Answer:

The arrow for heat is the widest output arrow.