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dalvyx [7]
3 years ago
7

Given the following unbalanced thermochemical equation, how much heat will be released from the combustion of 45.5 grams of CH4

in an excess of oxygen gas?
CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) + 890 kJ
Chemistry
2 answers:
TEA [102]3 years ago
6 0

Answer:

2530kJ

Explanation:

a_sh-v [17]3 years ago
5 0
Heat  released   from  the  combustion  of   45.5  grams of  CH4 in  excess oxygen  gas is  calculated  as follows

calculate the number  of  CH4 moles used  = mass/molar mass
=  45.5  grams/ 15  g/mol  =2.84  moles

heat  released  is therefore= moles  x  890 kj

=   2.84  x 890=2527.6  kj/mol
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The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
avanturin [10]

a. 0.137

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<h3>Further explanation</h3>

Given

Reaction

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