Answer:
The correct answer is in an exothermic reaction the energy of the product is less than the energy of the reactants.
Explanation:
Exothermic reaction is a type of reaction that generates heat.As a result in case of an exothermic reaction the energy of the reactant is more than the energy of the product.
That"s why the enthalpy change in an exothermic reaction is always positive .
Answer:
The molar mass of the gas is 90.4g/mol
Explanation:
To solve this question we have to use the equation:
d = PM / RT
<em>Where d is density of the gas = 2.29g/L</em>
<em>P is pressure = 0.75atm</em>
<em>M is molar mass of the gas = ??</em>
<em>R is gas constant = 0.082atmL/molK</em>
<em>T is absolute temperature = 88°C + 273.15 = 361.15K</em>
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Solving for M:
dRT / P = M
2.29L*0.082atmL/molK*361.15K / 0.75atm = M
90.4g/mol = M
The molar mass of the gas is 90.4g/mol
The answer is C. more better. Like I'm better everyday :D
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