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3 years ago

7

The Same force is applied to a 300 kg go kart and 100 kg wagon at the beginning of the race. Which time is true about their acce

leration

1 answer:

ELEN [110]3 years ago

5 0

The wagon will accelerate at a faster pace. Since the wagon is lighter than the go kart, the same force will have a stronger effect

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4 years ago

What is the enthalpy for reaction 1 reversed? reaction 1 reversed: 2co2 + 3h2o→c2h5oh + 3o2 express your answer numerically in k

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Answer: The enthalpy of the given reaction is 1234.8kJ/mol.

Explanation: Enthalpy change of the reaction is the amount of heat released or absorbed in a given chemical reaction.

Mathematically,

$\Delta H_{rxn}=\Delta H_f_{(products)}-\Delta H_f_{(reactants)}$

For the given reaction:

$2CO_2(g)+3H_2O(g)\rightarrow C_2H_5OH(l)+3O_2(g)$

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$H_f_{(H_2O)}=-241.8kJ/mol$

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$H_f_{(O_2)}=0kJ/mol$

$\Delta H_{rxn}=\Delta H_f_{(C_2H_5OH)}+3\Delta H_f_{(O_2)}-[2\Delta H_f_{(CO_2)}+3\Delta H_f_{(H_2O)}]$

Putting values in above equation, we get:

$\Delta H_{rxn}=[-277.6+3(0)]-[2(-393.5)+3(-241.8)]kJ/mol$

$\Delta H_{rxn}=1234.8kJ/mol$

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