QUESTION 2 1 points A metal object at 91.0 °C cools to 25.0 °C by losing...

Question

Question

Answer 1

Answer #1

Heat (Q) = 5.56 KJ = 5.56*1000 = 5560 J

Q = c * Delta T

5560 = c * (91 - 25)

c = 84.2 J/°C ....Answer

Answer 2

Similar Homework Help Questions

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

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...
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...
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 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
NEED ANSWERS ASAP PLZ QUESTION 18 A metal object at 15.00 °C is heated by gaining...

NEED ANSWERS ASAP PLZ QUESTION 18 A metal object at 15.00 °C is heated by gaining 5.81 kJ of heat from the environment. The final temperature is 18.32 °C. What is the heat capacity, C, of the metal in units of kJ/ °C? O 85.4 kg/ qc O 612 kJ/ ºc O 416 kJ/ °C O 40.2 kg/ ºc O 1.75 kg/ ºc 29.5 kJ/ °C O 15.7 kJ/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

Specific Heat Capacity A 21.5-g sample of an unknown metal is heated to 94.0°C and is...

Specific Heat Capacity A 21.5-g sample of an unknown metal is heated to 94.0°C and is placed in a insulated container containing 128 g of water at a temperature of 21.4°C. After the metal cools, the final temperature of the metal and water is 25.0°C. Calculate the specific heat capacity of the metal, assuming that no heat escapes to the surroundings. Heat loss=Heat gained. Specific Heat Capacity of water is 4.18 J/g/K in this temperature range. Submit Answer Incompatible units....
QUESTION 5 A metal cube loses 3.358 kJ of heat. (.e., q = -3.358 kJ) The...

QUESTION 5 A metal cube loses 3.358 kJ of heat. (.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 °C, the final temperature (after heat loss) is 35.0 °C. What is the specific heat, c, of the metal in units of J/g °C? (watch units! Units must match!) 1.93 J/gºc 3.25 J/gºC 2.51 J/gºc 0.986 J/gºC 0.529 J/9°C 0.201 J/gºC 0.408/9°C
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

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...