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mr_godi [17]
1 year ago
8

(b)

Chemistry
1 answer:
liberstina [14]1 year ago
4 0

One improvement to the filtration assembly is the presence of glass rod as glass rod  helps in negation of adhesion between glassware and the supernatent.

<h3>What is filtration?</h3>

Filtration is defined as a process  by which solid  particles which are present in liquid or gaseous medium are allowed to be removed  using a filter medium which retains the particles but allows the liquid to pass through.

The requirements  for filtration are a filter medium ,fluid containing particles , a mechanical device usually a filter and a driving force.The filter media is classified depending on the pore size of particles which are to be filtered.

Learn more about filtration,here:

brainly.com/question/11403039

#SPJ1

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D.Both Longitudinal and Transverse

Explanation:

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Butane C4 H10 (g),(Delta.Hf = –125.7), combusts in the presence of oxygen to form CO2 (g) (Delta.Hf = –393.5 kJ/mol), and H2 O(g
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Answer:

  • <u>Second choice:</u>

                       \Delta H_{rxn}=-2,657.4kJ/mol

Explanation:

<u>1. Combustion reaction </u>

      2C_4H_{10}+13O_2\rightarrow 8CO_2+10H_2O

<u>2. Enthalpy of reaction equation</u>

     \Delta H_{rxn}=\sum\Delta H_f(products)-\sum\Delta H_f(reactants)

<u>3. Substitute and divide by the coefficient of butane that appears in the combustion reaction</u>

      \Delta H_{rxn}=\dfrac{8(-393.5kJ/mol)+10(-241.82kJ/mol)-2(-125.7kJ/mol)}{2mol}

      \Delta H_{rxn}=-2,657.4kJ/mol\leftarrow answer

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