A metal object at 90 oC cools to 25.0 oC by losing 5.56 kJ of heat...

Question

Question

A metal object at 90 ^oC cools to 25.0 ^oC by losing 5.56 kJ of heat
to the environment.
What is the heat capacity, C, of the metal object in units of J/ ^oC?
An object at 40.0 ^oC is heated to 115.0 ^oC.
How many kJ of heat did it gain from the environment?
The heat capacity, C, of the object is 0.690 kJ/ ^oC.
200.0 g of H ₂O at 44.0 ^oC lost 15.7 kJ of heat to a cooler environment.
What is its new temperature?
200.0 g of H ₂O at 50.00 ^oC cools to 26.00 ^oC.
How many kJ of heat did it lose to the environment? (Report the absolute value)
The specific heat, c, of water is 184 J/g·C.

Answer 1

Answer #1

Ems Heat stl gaun elatid to heat ond temperaturu capoeuty chang au 9-heat lost or gaun C- heat Capacity AT- Temperatuwru chan

Answer 2

Similar Homework Help Questions

An 78.5 g piece of metal whose T = 63.00 oC is placed in a coffee cup calorimeter containing 125 g water. &n...

An 78.5 g piece of metal whose T = 63.00 oC is placed in a coffee cup calorimeter containing 125 g water. When the system reaches equilibrium, the water has changed from 20.00 oC to 24.00 oC. What is specific heat of metal? An 88.5 g piece of metal whose T = 78.8 oC is placed in a coffee cup calorimeter containing 244 g water. When the system reaches equilibrium, the water has changed from 18.80 oC to 200 oC....
QUESTION 2 1 points A metal object at 91.0 °C cools to 25.0 °C by losing...

QUESTION 2 1 points A metal object at 91.0 °C cools to 25.0 °C by losing 5.56 kJ of heat to the environment. What is the heat capacity, C, of the metal object in units of J/ °C? Watch units! Hint: units must match. 425 / °C 7.513/°C 216 11°c 846J/ °C 9.61 )/ °C 84.2 1/°C
A metal object at 40.0°C is heated to 115.0 °C. How many k) of heat did...

A metal object at 40.0°C is heated to 115.0 °C. How many k) of heat did it gain from the environment? The heat capacity, C, of the metal object is 0.690 kJ/ °C 50.5 kJ 61.5 kJ 316 kJ OOOOO 246 kJ 51.8K 49.0 kj 661 kJ 90.2

1.A metal object at 38.0 oC is heated by gaining 11.5 kJ of heat from the...

1.A metal object at 38.0 oC is heated by gaining 11.5 kJ of heat from the environment. The heat capacity, C, of the metal object is 1.55 kJ/ oC. (Note: NOT the specific heat, which has units of J/ g oC) What is the final T? 2.A metal cube loses 3.358 kJ of heat. (i.e., q = -3.358 kJ) The metal has mass of 135.6 grams. The initial temperature of the metal before the heat loss is is 158.0...
1)350.0 g of H2O at 30.0 oC is heated to 85.0 oC. How many kJ of...

1)350.0 g of H2O at 30.0 oC is heated to 85.0 oC. How many kJ of heat did it gain from the environment? The specific heat, c, of water is 4.184 J/g·C . 2)A sample of a metal at 90.00°C was added to 200.0 g H 2O at 21.00°C. The temperature rose to 24.50°C. [Specific heat of H 2O is 4.184 J/(g °C). Specific heat of the metal is 0.949 J/(g°C). How many grams of metal was it?\ 3)Use the...
A metal object at 28.0 oC is heated by gaining 2.31 kJ of heat from the...

A metal object at 28.0 oC is heated by gaining 2.31 kJ of heat from the environment. The final Temp is 30.2 degrees C. What is the Heat Capacity, C, of the metal ? 25.4 kJ/oC 612 kJ/oC 416 kJ/oC 1.05 kJ/oC 21.4 kJ/oC 39.5 kJ/oC 35.7 kJ/oC 25.3 kJ/oC

A metal object at 54.0 oC is heated by gaining 30.2 kJ of heat from the...

A metal object at 54.0 oC is heated by gaining 30.2 kJ of heat from the environment. The heat capacity, C, of the metal object is 6.30 kJ/ oC When 11.53 g C2H6O (g) is reacted according to the following equation, 368 kJ of heat is released. What is the ΔH of the reaction? C2H6O (g) + 3O2(g) --> 2CO2(g) + 3H2O (l) When 2.45 g of CH3OCH3 is burned at constant Pressure, 77.42 kJ of heat is given off. What is...
Question 8 200.0 g of H20 at 50.0°C cools to 26.0 °C. How many kj of...

Question 8 200.0 g of H20 at 50.0°C cools to 26.0 °C. How many kj of heat did it lose to the environment? The specific heat, c, of water is 4.184 J/g-C. Watch units! 8.28 kJ 11.5 kJ 46.1 k 14.0 kJ 25.2 k 43.0 kJ 35.2 k 20.1 k
A metal object at 38.0°C is heated by gaining 11.5 kJ of heat from the environment....

A metal object at 38.0°C is heated by gaining 11.5 kJ of heat from the environment. The heat capacity, C, of the metal object is 1.55 kJ/ °C. What is the final T? 0 45.4°C 512 °C 0 116 °C 0 46.0 °C 0 0 214°C 90.5 °C 0 . 31.7 °C 25.3°C

QUESTION 17 3.00 g Na2CO3 is dissolved in H2O and titrated with HCl. 28.0 mL of...

QUESTION 17 3.00 g Na2CO3 is dissolved in H2O and titrated with HCl. 28.0 mL of a HCl solution were required to titrate the Na2CO3 solution. What is molarity of HCl solution? Na2CO3(aq) + 2HCl(aq) --> 2NaCl(aq) + H2O(l) + CO2(g) 1.88 molar 3.21 molar 0.0417 molar 9.37 molar 2.59 molar 0.123 molar 0.553 molar 2.02 molar 8 points QUESTION 18 A metal object at 28.0 oC is heated by gaining 2.31 kJ of heat from the environment. The final...