Question

A coffee cup calorimeter will not be used to
directly measure the enthalpy of magnesium
combustion because

✓ the coffee cups could melt.

The calorimeter is made of coffee cups instead of
a beaker because coffee cups are

✓ better insulators

than beakers.

You will not measure the enthalpy of the reaction
of

✓ H2 and 02

in the coffee cup calorimeter because this reaction involves gases
Instead, you will use a well-known published
value.

These are the correct answers on edge 2021

Answer 1

Answer:

Ingles porfavor

Explanation:

Answer 2

The calorimeter is used to measure the heat of the system. The enthalpy of the combustion of magnesium cannot be measured by the calorimeter as it could melt the cup.

What is a coffee cup calorimeter?

A coffee cup calorimeter is a styrofoam cup that contains partially filled water and is dipped with a thermometer. The reaction occurs in the water of the cup and hence differs from the bomb calorimeter.

The enthalpy of combustion is rigorous which can dissolve the polystyrene cup and hence is not used. They are better insulators than a beaker. The coffee cup calorimeter is not used to measure the enthalpy of hydrogen and oxygen as they involve gases that can escape the cup.

Learn more about coffee cup calorimeter here:

https://brainly.com/question/4390364

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