1) the kinetic energy of a 15.2 kg object traveling at 8.49 m/s is ___ J....
1) the kinetic energy of a 15.2 kg object traveling at 8.49 m/s is ___ J.
2) A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 oC to 68.9 oC. The specific heat of the substance is ___ J/g oC.
3) A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 oC to 68.9 oC. According to table 5.1 in the text, the sample may be ___.
a)copper b)iron c)lead d)aluminum
4) A 30.0 g piece of aluminum (C = 0.897 J/g oC) initially at 92 oC is placed in 100.0 g of water initially at 20.3 oC. The system adjusts until the temperature of the aluminum and the water are the same. What is the final temperature?
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1) the kinetic energy of a 15.2 kg object traveling at 8.49 m/s
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QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from...
QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 A 437.2 g sample of an unknown substance requires 8460 ) to increase its temperature from 19.3 °C to 68.9 °C. According to table 5.1 in the text, the sample may be copper lead aluminum iron QUESTION 9 A 30.0 g piece of aluminum (C = 0.897 J/g...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF
YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!!
QUESTION 7 Save Answer A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 0.5 points Save Answer A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 °C to 68.9...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF
YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!!
QUESTION 9 2 points Save Answer A 30.0 g piece of aluminum (C = 0.897 J/g °C) initially at 94.6 °C is placed in 100.0 g of water initially at 18.2 °C. The system adjusts until the temperature of the aluminum and the water are the same. What is the final temperature?
number 11 (b) dipole-dipole attraction (c) hydrogen bond Define components of this equation: h = (2T...
number 11
(b) dipole-dipole attraction (c) hydrogen bond Define components of this equation: h = (2T cos θ )/ (rp Use the given equation above to answer this question. At 35°C, how high will water rise in a glass capillary tube with an inner diameter of 0.5 mm? For water, T-71.99 mN/m and p-10 g/cm3 8. 9. 10. The density of liquid sample of NH3 is 0.64 g/mL; the density of same sample in gaseaus phase at 25 "C, 1...
15.2 J of heat is applied to 8.0 g samples of each of the following substances:...
15.2 J of heat is applied to 8.0 g samples of each of the following substances: water (s), water (g), mercury (1), and gold (s). Which substance's temperature will increase the most? The Specific Heat Capacities of Some Common Substances Substance Specific Heat Capacity (J/g °C) water (()* (liquid) 4.184 water(s) (ice) 2.03 water (8) (steam) 2.0 aluminum (s) 0.89 iron (s) 0.45 mercury (1) 0.14 0.71 silver (S) 0.24 gold (s) 0.13 *The symbols (s), (), and (g) indicate...
Constants 1. A 14.6 g bullet traveling horizontally at 865 m/s passes through a tank containing...
Constants 1. A 14.6 g bullet traveling horizontally at 865 m/s passes through a tank containing 14.0 kg of water and emerges with a speed of 534 m/s . What is the maximum temperature increase that the water could have as a result of this event? 2. A copper pot with a mass of 0.525 kg contains 0.155 kg of water, and both are at a temperature of 23.0 ∘C . A 0.270 kgblock of iron at 86.5 ∘C is...
Substance molar heat capacity (C.)/J•mol-1.°C-1 75.3 specific heat capacity (C.) /J•g-lo°C-1 0.384 H2O(1) Cu(s) C,H,OH(l) (ethanol)...
Substance molar heat capacity (C.)/J•mol-1.°C-1 75.3 specific heat capacity (C.) /J•g-lo°C-1 0.384 H2O(1) Cu(s) C,H,OH(l) (ethanol) Fe(s) 111.5 0.449 1. Fill in the empty entries in the table above. 2. If the same amount of energy is transferred to 1.0 g samples of each of the substances listed above, order them from largest AT to smallest AT. Explain. 3. Which is the consequence of copper's relatively low specific heat (0.385 J/(g°C)) compared to water (4.18 J/(g°C)) on the temperature change...
Case 2: A 0.780-kg silver pellet with a temperature of 85 oC is added to 0.150...
Case 2: A 0.780-kg silver pellet with a temperature of 85 oC is added to 0.150 kg of water in a copper cup of 0.66 kg. The initial temperature of the water and the copper cup is 14 oc. Assume no heat is exchanged with the surroundings. The specific heats of silver, water and copper are: 234 J/(kg oC), 4186 J/(kg oC) and 387 J/(kg oc), respectively. Find the final temprature of the system (silver+water+copper cup). Note: 1. Slver pellet...
Calculate the amount of heat in J required to increase the temperature of 25.0 grams of...
Calculate the amount of heat in J required to increase the temperature of 25.0 grams of water from 25. °C to 50.0 °C. ice Specific Heats of Common Substances at 25 °C and 1 bar Substance Symbol Specific Heat (J/g (state) °C) helium He(s) 5.193 water H2O(1) 4.184 ethanol C2H60(1) 2.376 H2O(s) 2.093 (at -10 °C) water vapor H2O(g) 1.864 nitrogen N2(8) 1.040 air 1.007 oxygen O2(8) 0.918 aluminum Al(s) 0.897 carbon CO2(8) 0.853 dioxide argon Ar(s) 0.522 iron Fe(s)...
1. An unknown sample is being evaluated in lab. What is the specific heat of the...
1. An unknown sample is being evaluated in lab. What is the specific heat of the compound if it requires 105.06 J to raise the temperature of 51.68 grams of the unknown from 15.25 °C to 22.9 °C. 2. 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 5.94 degrees Celsius. The final temperature of the system is 20.15 degrees Celsius. Calculate the specific heat of the...
QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 A 437.2 g sample of an unknown substance requires 8460 ) to increase its temperature from 19.3 °C to 68.9 °C. According to table 5.1 in the text, the sample may be copper lead aluminum iron QUESTION 9 A 30.0 g piece of aluminum (C = 0.897 J/g...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF
YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!!
QUESTION 7 Save Answer A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 0.5 points Save Answer A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 °C to 68.9...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF
YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!!
QUESTION 9 2 points Save Answer A 30.0 g piece of aluminum (C = 0.897 J/g °C) initially at 94.6 °C is placed in 100.0 g of water initially at 18.2 °C. The system adjusts until the temperature of the aluminum and the water are the same. What is the final temperature?
number 11
(b) dipole-dipole attraction (c) hydrogen bond Define components of this equation: h = (2T cos θ )/ (rp Use the given equation above to answer this question. At 35°C, how high will water rise in a glass capillary tube with an inner diameter of 0.5 mm? For water, T-71.99 mN/m and p-10 g/cm3 8. 9. 10. The density of liquid sample of NH3 is 0.64 g/mL; the density of same sample in gaseaus phase at 25 "C, 1...
15.2 J of heat is applied to 8.0 g samples of each of the following substances: water (s), water (g), mercury (1), and gold (s). Which substance's temperature will increase the most? The Specific Heat Capacities of Some Common Substances Substance Specific Heat Capacity (J/g °C) water (()* (liquid) 4.184 water(s) (ice) 2.03 water (8) (steam) 2.0 aluminum (s) 0.89 iron (s) 0.45 mercury (1) 0.14 0.71 silver (S) 0.24 gold (s) 0.13 *The symbols (s), (), and (g) indicate...
Substance molar heat capacity (C.)/J•mol-1.°C-1 75.3 specific heat capacity (C.) /J•g-lo°C-1 0.384 H2O(1) Cu(s) C,H,OH(l) (ethanol) Fe(s) 111.5 0.449 1. Fill in the empty entries in the table above. 2. If the same amount of energy is transferred to 1.0 g samples of each of the substances listed above, order them from largest AT to smallest AT. Explain. 3. Which is the consequence of copper's relatively low specific heat (0.385 J/(g°C)) compared to water (4.18 J/(g°C)) on the temperature change...
Case 2: A 0.780-kg silver pellet with a temperature of 85 oC is added to 0.150 kg of water in a copper cup of 0.66 kg. The initial temperature of the water and the copper cup is 14 oc. Assume no heat is exchanged with the surroundings. The specific heats of silver, water and copper are: 234 J/(kg oC), 4186 J/(kg oC) and 387 J/(kg oc), respectively. Find the final temprature of the system (silver+water+copper cup). Note: 1. Slver pellet...
Calculate the amount of heat in J required to increase the temperature of 25.0 grams of water from 25. °C to 50.0 °C. ice Specific Heats of Common Substances at 25 °C and 1 bar Substance Symbol Specific Heat (J/g (state) °C) helium He(s) 5.193 water H2O(1) 4.184 ethanol C2H60(1) 2.376 H2O(s) 2.093 (at -10 °C) water vapor H2O(g) 1.864 nitrogen N2(8) 1.040 air 1.007 oxygen O2(8) 0.918 aluminum Al(s) 0.897 carbon CO2(8) 0.853 dioxide argon Ar(s) 0.522 iron Fe(s)...
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