When 1.0 g of fructose, c6h12o6(s), a sugar commonly found in fruits, is burned in oxygen in a bomb calorimeter, the temperature of the calorimeter increases by 1.58 °c. if the heat capacity of the calorimeter and its contents is 9.90 kj/°c, what is q for this combustion?

Answer : The heat of combustion is, 15642 J

Solution :

Formula used :

where,

= heat of combustion = ?

= mass of fructose = 1.0 g

= heat capacity of the calorimteter  =

conversion used : 1 KJ = 1000 J

= change in temperature =

Now put all the given values in the above formula, we get

Therefore, the heat of combustion is, 15642 J

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a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.