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The surroundings do 1.44kJ of work compressing a gas in a perfectly insulated cylinder such that no heat can be exchanged. "Calculate the change in internal energy of the system and determine whether the process is endothermic or exothermic"
Calculate the total amount of energy (in kJ) necessary to raise the temperature of 2.00 L of ethanol (density = 0.7849 g/cm3) from 18 0C to its boiling point (78.3 0C) and then to fully vaporize the liquid. Assume that it is a closed system where no heat exchange with the surroundings take place.
(Given: Cethanol = 2.44 J/g·K; heat of vaporization of ethanol at 78.3 0C = 38.56 kJ/mol.)
Describe a reaction that can be used to distinguish between oxygen and ozone. Include an observation
Calculate the mass (in kg) of glucose that can be synthesized by a plant through photosynthesis when 2.49 x 104 kJ of sunlight energy is absorbed by the plant.
Calculate the mass (in kg) of glucose that can be synthesized by a plant through photosynthesis when 2.49 x 104 kJ of sunlight energy is absorbed by the plant.
Calculate the total amount of energy (in kJ) necessary to raise the temperature of 2.00 L of ethanol (density = 0.7849 g/cm3) from 18 0C to its boiling point (78.3 0C) and then to fully vaporize the liquid. Assume that it is a closed system where no heat exchange with the surroundings take place.
(Given: Cethanol = 2.44 J/g·K; heat of vaporization of ethanol at 78.3 0C = 38.56 kJ/mol.)
What is the structural formula and the molecular of CH3CH2CH3 and CH3CH3?
What does “the epicentre of octet rule” mean?
What is the difference between Acidic oxides and Basic oxides?
A sample of acetic acid has a hydrogen ion concentration of 7.5 x 10-3 M. Calculate the pH of this acid.
