Question
How much heat is required to raise the temperature of 20.9 g20.9 g of water from...
How much heat is required to raise the temperature of 20.9 g20.9 g of water from −25 °C−25 °C to 155 °C? the answer are not 1.45 *10^5 and 10.956778 ! you have to calculate be broken 1.down into five step! heart the ice from -25 c to 0 c
2.melting the ice
3.heating the liquid water from 0c to 100 c
4.100 c to 155 c
0.497 cal/ g c to do this calculate
All this answer 12298.782 and 10.956778 are wrong ,please make sure you understand the question before answering it.Thanks
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
suppose the specific heat of ice and water is 0.49 cal/g. C ( C represent degree...
suppose the specific heat of ice and water is 0.49 cal/g. C ( C
represent degree Celsius) and 1.0 cal/g. C. the latent heat of
fusion of water is 80 cal/g. how much heat (in calories) is
required for 100 grams of ice with an initial temperature of -10 C
to a. raise the ice's temperature to the melting point? b. then
completely melt the ice to water? c. finally, raise the water's
temperature to 50 C?
17. How much heat is required to change the temperature of 50 g of ice cube...
17. How much heat is required to change the temperature of 50 g
of ice cube initially at - 30 0C to steam at 160
0C? (Express your answer in J){ specific heat of ice is
2090 J/kg 0C, that of water is 4186 J/kg 0C,
that of steam is 2010 J/kg 0C; Lf = 3.33 X 10 J/kg, Lv =
2.26 X 10 J/kg.}
How much heat is required for the following: a) Raise the temperature from -10°C to 0°C...
How much heat is required for the following:
a) Raise the temperature from -10°C to 0°C for a 50kg block of
ice.
b) Melt the ice to water
c)Heat the water to 100°C.
d) Evaporate all the water.
e) Compute the total heat supplied.
What amount of heat is required to raise the temperature of 500.0 g of water from...
What amount of heat is required to raise the temperature of
500.0 g of water from 20.0 to 30.0C?
The answer should have three significant figures.
Use 4.184 J/gC for the specific heat of water.
4. In total, how much heat is required to raise the temperature of a 450 g...
4. In total, how much heat is required to raise the temperature
of a 450 g sample of water (c = 4.18 J/oC.g) in a saucepan that has
a heat capacity of 300 J/oC from 200C to 75oC?
How much energy (in kJ) is required to raise the temperature of 25.0 g of H2O...
How much energy (in kJ) is required to raise the temperature of
25.0 g of H2O from –25°C to 25°C ? (ΔH°fus of H2O = 6.02 kJ/mol ;
molar heat capacity of solid H2O = 37.6 J/mol•°C ; molar heat
capacity of liquid H2O = 75.4 J/mol•°C)
(a) 70.7 kJ
(b) 8.73 kJ
(c) 61.9 kJ
(d) 12.3 kJ
2. Sixty grams of water is at an initial temperature of 24 °C. Calculate the heat...
2. Sixty grams of water is at an initial temperature of 24
°C.
Calculate the heat required to completely convert the 100 ºC
water to steam. (The latent heat of vaporization of water is 540
cal/g.)
The heat required to completely convert the 100 ºC water to
steam is... kcal?
3. How much heat is required to raise the temperature of 140 g
of water from 12°C to 88°C? The specific heat capacity of water is
1 cal/g·°C.
The heat...
QUESTION 1 Calculate the heat energy required to raise the temperature of a cup of water...
QUESTION 1
Calculate the heat energy required to raise the temperature of a
cup of water (300 grams) from 25°C to 100°C. Express your answer in
Joules. (Be careful with powers of 10)
A
9.43 x 10e4 J
B
22,500 J
C
2.25 x 10e4 J
D
94,275 x 10e4 J
E
80 J
F
335 J
QUESTION 2
Calculate the heat energy required to raise the temperature of 5
gallons of water from 50 F to 130 F....
How much heat is required to convert 80.0 g of ice at -20.0°C into liquid water...
How much heat is required to convert 80.0 g of ice at -20.0°C
into liquid water at 50.0°C?
The enthaply of fusion of ice is 334 J/g. The heat capacity of liquid water is...
The enthaply of fusion of ice is 334 J/g. The heat capacity of
liquid water is 4.18 j/gxC. What is the smallest number of ice
cubes at 0C, each containing one mole of water necessary to cool
500 g of liquid water intially at 20 C to 0 C?
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 6 minutes ago
asked 13 minutes ago
asked 15 minutes ago
asked 18 minutes ago
asked 39 minutes ago
asked 43 minutes ago
asked 50 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago