Chemistry, 24.09.2019 06:00 dalton200166

You used a calorimeter in the heat transfer lab. explain how the calorimeter works, and how to calculate the heat given off or absorbed by the reaction being studied.

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A calorimeter contains reactants and a substance to absorb the heat absorbed. The initial temperature (before the reaction) of the heat absorbent is measured and then the final temperature (after the reaction) is also measured. The absorbent's specific heat capacity and mass are also known. Given all of this data, the equation:
Q = mcΔT
To find the heat released.

Answer from: thickbeanpapi

Calorimeter functions by possessing a known mass of familiar substance combust or react in an enclosed space. The calorimeter exhibits an agent for captivation of the heat discharged at the time of reaction or combustion, for example, water may act as the heat absorbing agent.

The variation in temperature of the heat absorbent in the company of its mass and specific heat capacity are utilized to find out the energy discharged with the help of the equation:

Q = mCΔT

Answer from: Quest

For cyclohexane compounds drawn in a chair conformation: -axial bonds are vertical -equatorial bonds are parallel to two bonds within the ring. thus, as i assume the chair conformation is drawn: -the x group is in an axial position, as are the five other vertical bonds. -three axial bonds are on the top face of the ring -the other three axial bonds are on the bottom face the position of the second substituent on each ring carbon is equatorial. gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other. drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1. click this link and watch some academic videos that may you more understand the topic

Answer from: Quest

definition

entropy is a measure of the randomness or the extent of disorder of a chemical process.

enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

entropy is measured in joule per kelvin (jk⁻¹) whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

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You used a calorimeter in the heat transfer lab. explain how the calorimeter works, and how to calcu...