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Which reaction shows that the enthalpy of formation of C2H4 is Hf 52.5 kJmol?
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What is meant of '. ' in chemical reaction?
'.' shows the multiplication in chemical reaction.
What happens to the entropy in the reaction?
Entropy increases. In a reaction comprised of sub-reactions, some sub-reactions may show a decrease in entropy but the entire reaction will show an increase of entropy. As an example, the formation of sugar molecules by living organisms is a process that shows decrease in entropy at the expense of the loss of entropy by the sun.
What cell is being obsorved when it shows formation of a contractile ring just prior to cytoplasmic division?
A cell shows formation of a contractile ring just prior to cytoplasmic division.
What kind of reaction shows two reactants combining to form one new profuct?
combination reaction
What information does the potential energy diagram reveal about reaction?
It shows whether the reaction is exothermic or endothermic.
Which reaction shows that the enthalpy of formation of H2S is Hf -20.6 kJmol?
H2(g) + S(s) —> H2S + 20.6 kJ
What is an example that shows that the combustion of methane produces 802 kJmol of energy?
The enthalpy of combustion is determined by calorimetry.
Which reaction shows that the enthalpy of formation of CS2 is H89.4 kj mol?
C(s) + 2S(s) + 89.4kJ --} CS2(l)
Which reaction shows that the enthalpy of formation of C2H4 is Hf 52.5 kJ mol?
2C(s) + 2H2(g) + 52.5 kJ -> C2H4
Which reaction shows that the enthalpy of formation of H2S is Hf -20.6 kJ mol?
H2(g) + S(s) H2S + 20.6 kJ
which reaction shows that the enthalpy of formation of C2H4 is Hf = 52.5 kJ/mol?
2C(s) + 2H2(g) + 52.5 kJ -> C2H4
Which reaction shows that the enthalpy of formation of cs2 is hf 89.4 kJ mol?
C(s) + 2S(s) + 89.4 kJ --> CS2(l)
which energy profile best shows that the enthalpy of formation of CS2 is 89.4 kJ/mol?
graph D
Which of the following reactions shows h formation of CO2 releases 393.5 kjmol?
C(s)+O2(g) yields CO2(g)+393.5kJ
Which energy profile best shows that the enthalpy of formation of CS2 is 89 4 KJ mol?
Graph D `WXM
What is molar enthalpy change?
Molar bond enthalpy shows the change in a bond association. For example, if one mole of bond is broken, the energy change that results is DHd (degree).
What energy profile best shows that the formation of NO2 requires 33.1 kJmol?
Brainly says it’s energy profile B for APEX please correct if i’m wrong.
