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When 1661J of heat energy is added to 38.7g of ethanol C2H6O the temperature increases by 17.5 C calculate the molar heat capacity?
Wiki User
∙ 12y ago
The molar mass of ethanol is 46.07 g/mol−1 so 38.7 g of ethanol would be 0.84 moles (strictly speaking gram∙moles).
If 1661 J warms it up by 17.5 °C then the molar heat capacity would be about 112 J/mole/°C (or J/mole/K if you prefer those units).
Note that heat capacity is a function of temperature, so the value is only correct for the temperature where the measurements were made.
Wiki User
∙ 12y ago
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Ethanol interferes with the yeast's biological processes. This increases as the alcohol concentration increases until at some point fermentation stops all together.
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Measure equal amounts of water and ethanol in separate containers. Take temperature of both. Add ethanol to water and take temperature.
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Yes it does. As the concentration of EtOH increases, the ability of amylase to degrade starch lessens. That is, the rate at which starch is decomposed is less in magnitude as the concentration of ethanol increases.
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If the demand for ethanol increases the price will also increase.This is based on price elasticity of demand.
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Ethanol is less viscous than ethylene glycol at the same temperature. This is because ethanol only has one -OH group, which is responsible for viscosity.
