Chemistry, 17.12.2019 01:31 Morganwing1019
How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee and the cup from 95.0°c to 45.0°c ? assume the coffee has the same thermal properties as water and that the average heat of vaporization is 2340 kj/kg (560 kcal/g). neglect heat losses through processes other than evaporation, as well as the change in mass of the coffee as it cools. do the latter two assumptions cause your answer to be higher or lower than the true answe
Answers: 2
Chemistry, 22.06.2019 10:30
Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand
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Chemistry, 22.06.2019 19:10
Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .
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Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee...
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