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يمكن قياس السعر (بكمية المنتج المصنوع في وقت معين)
2-the rate of a reaction changes with time
معدل رد الفعل يتغير مع مرور الوقت
3-the slope of the graph of the results (is a measure of the rate of reaction)
منحدر الرسم البياني للنتائج (مقياس لمعدل التفاعل)
4-the more (collisions between particles of reactants there are in a given time the faster the reaction)
كلما زادت (التصادمات بين جزيئات المواد المتفاعلة في وقت معين كلما كان التفاعل أسرع)
5-when a (solid lump is cut into pieces its total surface area increases)
عندما (يتم قطع الكتلة الصلبة إلى قطع تزداد مساحة سطحها الإجمالية)
6-an increase in the total surface area gives an increase in the rate of reaction
تؤدي الزيادة في إجمالي مساحة السطح إلى زيادة معدل التفاعل
7-the rate of reaction increase because the reaction can only take place with the particles on the surface of the solid
يزداد معدل التفاعل لأن التفاعل لا يمكن أن يحدث إلا مع الجزيئات الموجودة على سطح المادة الصلبة
8-as the temperature is increased the rate of reaction increases
كلما زادت درجة الحرارة يزداد معدل التفاعل
9-when particles have more energy they move faster and collide more often and with greater energy
عندما تزداد طاقة الجسيمات فإنها تتحرك بشكل أسرع وتتصادم أكثر وبطاقة أكبر
10-as the concentration of reactants is increase the rate of reaction is increase
مع زيادة تركيز المواد المتفاعلة ، يزداد معدل التفاعل
11-when there are more particles in a given volume, they are more likely to collide with each other
عندما يكون هناك المزيد من الجسيمات في حجم معين ، فمن المرجح أن تتصادم مع بعضها البعض
12-a catalyst is a substance which speeds up a chemical reaction
المحفز هو مادة تسرع التفاعل الكيميائي
13-a catalyst is not changed in the reaction and can be recovered and re-used
لا يتم تغيير المحفز في التفاعل ويمكن استعادته واستخدامه
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