Question

4x using fig 2, select the graph that best represents the relationship between particle energy and substance temperature as the cylinder is heated.

Explanation:

When a substance is heated, the average kinetic energy of its particles increases. As temperature rises, more particles gain higher energies. Graph B shows an increasing trend where as temperature (x - axis) increases, particle energy (y - axis) also increases, which is consistent with the relationship when a substance is heated. Graph A shows a decreasing trend which is incorrect. Graph C shows no change in energy with temperature which is wrong. Graph D shows a non - physical decreasing trend after an increase.

Answer:

B