If the developing solution is too warm, what effect will it have on the X-ray film?

When the developing solution is too warm, it accelerates the chemical reactions that occur during the development of X-ray film. This increased temperature results in a higher level of development, meaning that the film can become excessively dark as the silver halide crystals are reduced more than they should be. Therefore, the film appears darker than it is supposed to, leading to an overdeveloped image.

The effect of this too-warm developing solution reflects the principle of temperature control in photographic processing. Each emulsion has an optimal temperature range for developing, and exceeding this range can lead to unpredictable results, commonly manifesting as excessive density—hence, the film turns out darker. Other options like being too light, fogged, or overexposed do not accurately describe the consequences of high temperature in this context.