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If 20.2kJ of energy is added to 5.0g of water at 95 degrees C, calculate the...
if 48.0 grams of water at 78.0 degrees C is added to 75.0 grams of water at 42.0 degrees Celsius what is the final temperature?
1. How much heat must be added to 137 grams of water initially at 60°C to increase the temperature and convert all the water into steam? 2. 614 Joules of work is done on a fluid while 182 calories of heat escape from that fluid into its surroundings. What is the change in internal energy of the fluid in Joules?
show all work please! 1. A piece of hot lead is added to cold water in a constant volume calorimeter . The lead loses 3450 J of heat and the water gains 2890 J of heat. Calculate the mass of lead added if the initial temperature of the lead (0.158 J/g- degrees C) is 98 degrees C and the final temperature is 37 degrees C 2. Calculate the heat capacity of the calorimeter if the initial and final temperature of...
Suppose you want to cool 0.760 L (0.760 kg) of water initially at 31.8 degrees C by adding ice cubes whose initial temperature is 0.0 degrees C. What mass of ice must be added so that the final temperature of the system is 8.10 degrees C? Assume that no heat is lost to the surroundings.
A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celsius is added to 50.00 grams of water initially at 12.16 degrees Celsius. The final temperature of the metal and water is 20.15 degrees Celsius. Calculate the specific heat of the metal. (The specific heat of water is 4.184 J/g*C). (HINTS: Recall that the q of a system is equal to the -q of the surroundings. So you can set up two equations here: one for the loss...
How much energy is required to turn 5.00 kg of ice at -25.0 degrees C to steam at 140 degrees C? Show your work. cice= 2090 J/kg•oC Lfusion (water)= 3.33 x 105J/kg cwater= 4186 J/kg•oC Lvapor(water)= 2.26 x 106J/kg csteam= 2010 J/kg•oC
7. What mass of steam at 122 °C must be added to 2.20 kg of ice at-25.0 °C to yield liquid water at 90.0°F? Show all your work--equations, units, conversions, etc.
How much energy is required to turn 5.00 kg of ice at -25.0 degrees C to steam at 140 degrees C? Show your work. cice = 2090 J/kg•oC Lfusion (water) = 3.33 x 105 J/kg cwater = 4186 J/kg•oC Lvapor(water) = 2.26 x 106 J/kg csteam = 2010 J/kg•oC
Calculate the heat that must be added to 20 kg of water that is at 30C in order to convert it to superheated steam at pressure of 4,000 kPa and a temperature of 500C
A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celsius is added to 50.00 grams of water initially at 14.37 degrees Celsius. The final temperature of the metal and water is 20.15 degrees Celsius Calculate the specific heat of the metal (The specific heat of water is 4.184J'g'C). (HINTS Recall that the qof a system is equal to the of the surroundings So you can set up two equations here one for the loss of heat from...