Equation a. C3H8(g) + O2(g) → CO2(g) + H2O(g) + 2220 kj is endothermic. + 2220 kj Equation b. 2 Na(s) + Cl2(g) → 2 NaCl(s) + 819kJ is also endothermic since the overall energy change is positive. + 819kJ The equation c. PCl5(g) + 67kj → PCl3(g) + Cl2(g) is endothermic since it requires anergy to proceed.
Hi, by definition an exothermic reaction is the one that generates heat as it occurs. An endothermic reaction on the other hand, consumes heat from the environment as it happens.
<u>This can be seen, when energy is put as a reactant in the equation. When it appears as a procuct the reaction is exothermic.</u>
How many grams of KCl will dissolve in 1 liter of H2O at 50 °C? 5. 58.0 g of K2Cr2O7 is added to 100 g H2O at. 0 °C. With constant stirring, to what temp-.
The SI (international system) unit for molality is mol / kg, or solute moles per kg of peptides. A solution with a molality of 1 mol / kg is often described as "1 molal" or "1 m".
