How many joules of heat are lost by 1000g of granite as it cools from 41.2 Celsius to -12.9 Celsius?

The amount of heat released is 42739 Joules

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q = Heat released =?

c = heat capacity of granite =

Initial temperature  = =

Final temperature of the calorimeter  =  =

Change in temperature ,

Putting in the values, we get:

As heat comes out to be negative, that means the heat has been released and the amount of heat released is 42739 Joules

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.