Consider the reaction c12h22o11(s)+12o2(g)→12co2(g)+11h2o (l) in which 10.0 g of sucrose, c12h22o11, was burned in a bomb calorimeter with a heat capacity of 7.50 kj/∘c. the temperature increase inside the calorimeter was found to be 22.0 ∘c. calculate the change in internal energy, δe, for this reaction per mole of sucrose. express the change in internal energy in kilojoules per mole to three significant figures.
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Malik formed a hypothesis that an increase in atmospheric oxygen levels by 10% would cause red-legged grasshoppers to grow larger than normal. suppose that malik performs an experiment to test his hypothesis. which of these actions would represent a scientific mistake in his experiment? a. he experiments on live grasshoppers instead of preserved ones. b. he focuses on red-legged grasshoppers instead of all kinds of grasshoppers. c. he varies the nitrogen and carbon dioxide levels in the air from one trial to the next. d. he conducts the experiment in a controlled lab setting with a lab partner. e. he measures the mass and length of his specimens at the start of each trial.
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An engineer designing a new type of engine needs a liquid that can be heated and cooled quickly with as little exchange of energy as possible. which property should the engineer primarily look for in the liquid? a. low thermal conductivity b. low specific heat capacity c. high reactivity d. high internal energy e. high density
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Consider the reaction c12h22o11(s)+12o2(g)→12co2(g)+11h2o (l) in which 10.0 g of sucrose, c12h22o11,...
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