Which of the following is an example of an endothermic reaction? A. Burning of wood B. Melting of ice C. Rusting of iron D. Digestion of food 相关知识点: 试题来源: 解析 B。冰的融化是吸热反应。选项 A 木材燃烧是放热反应;选项 C 铁生锈是放热反应;选项 D 食物消化是放热反应。
one is to dissolve the reactants and the other as an acid or a base or a nucleophile. There...
What process can separate out the solute from the solvent? Is the process of liquid water being converted to ice endothermic or exothermic? What happens when a solid is dissolved into a liquid? What is enthalpy of steam? Which of the following releases the greatest amount of energy? a. st...
Is ice a gas, a solid or a liquid? Which of the following is an example of +\DeltaS? a. A solid being sublimed b. A gas being condensed to form a liquid c. A liquid freezing into a solid d. A gas being compressed at low...
Briefly, describe a process in which entropy appears to decrease, but is coupled with an increase in entropy elsewhere in the universe. Second Law of Thermodynamics Suniverse=Ssystem+Ssurrounding Answer and Explanation:1 An example would be...
Confirmed by fluorescence quenching spectroscopic studies and thermodynamic analysis, the static quenching of DDMSNs-NH2-HA to BSA was a result of an endothermic and hydrophobic force-driven thermodynamic process. The conformational variations of BSA when combined with nanocarriers were examined using a ...
an endothermic condition to exceed the exothermic reactions. The counterelectromotive force of the voltage impressed across the charge acceptor is reduced by the manipulation of ripple and resistance impedance. Thus, advantage is taken of the electrochemical thermodynamic reactions in order to control or...
This process is called slaking of lime. Calcium hydroxide dissolves in water to form its solution called lime water. Which among the following are true about slaking of lime and the solution formed? (i) It is an endothermic reaction. (ii) It is exothermic reation. (iii) The pH of...
Endothermic animals (warm-blooded animals) can stop their bodies from freezing by generating their own heat. They retain heat because of the insulation provided by feathers or fur, and the layer of fat beneath the skin. Other heat conservation measures include huddling together, recovering heat fro...
Possible inorganic binders are, in particular, a non-alkaline hydraulic binder such as magnesium oxychloride or magnesium oxysulphate, or a thermoplastic binder such as an aqueous melt of aluminium sulphate. In the event of fire, a plurality of highly endothermic reactions take place at high ...