Select the correct answer.
Why does a solid change to liquid when heat is added?
OA. The spacing between particles decreases.
O B. Particles lose energy.
OC. The spacing between particles increases.
OD. The temperature decreases.
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120 Edmentum. All rights reserved.

Answer; carbon monoxide (co);

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.