imagine you placed a flask on top of a heater. A thermometer measures the temperature inside...
imagine you placed a flask on top of a heater. A thermometer measures the temperature inside the flask. The top of the flask is closed tightly. The flask is filled with air, and the initial temperature is 20.
Write a scientific explanation for why the temperature of the gas rises when the flask is heated.
Homework Answers
Since the top of the flask is closed at top,volume of gas is constant
from first law of thermodynamics
at constant volume
hence entire heat suplied will be used to raise the internal
energy
hence the temperature of system increases
Add Answer to:
imagine you placed a flask on top of a heater. A thermometer measures the temperature inside...
This problem is for a closed and stationary system. You must draw the system boundary. You...
This problem is for a closed and stationary system. You must draw the system boundary. You must provide an answer on this page. If there is not enough room in the space provided, attach your additional pages to the assignment. 3) A mass of 14 kg air in a piston-cylinder device is heated from 25 to 77 °C by passing current through an electrical resistance heater inside the cylinder. The initial and final volumes are 10 and 20 ml respectively....
please answer number 8 thank you 3 Fastan a ctanp at the top of the flask...
please
answer number 8
thank you
3 Fastan a ctanp at the top of the flask and position it as the stopper assembily securely into the Rask Fils the water bath wt heat the water bath unu 5 With the stoppock open to the air with the red arms positioned verticallwater n the water while heating a stopper in the sink and fw it with cold water Close the stopoock (wilth the red ama positioned horizontally) and turn a Transfer...
a. b. Imagine that you have a 7.00 L gas tank and a 4.00 L gas...
a.
b.
Imagine that you have a 7.00 L gas tank and a 4.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 atm, to what pressure should you fill the acetylene tank to ensure that you run out Assume ideal behavior for all gases. each gas at the same time? Express...
if someone could do out 5 of these questions, that would be great. thanks Charles' Law Worksheet Name Directions:...
if
someone could do out 5 of these questions, that would be great.
thanks
Charles' Law Worksheet Name Directions: Calculate the following using Charles' Law. Assume constant pressure, number of moles, and containers are able to expand/contract. If a 6.50 L balloon at 22.0 °C is put into a refrigerator at 4.0 °C, calculate new volume. A 500 L balloon is heated from 20.0-75.0 C, calculate the final volume. A sample of gas is cooled from 180 °C to 25...
Answer all parts including a picture showing all variables please! Thank you 1. While I was...
Answer all parts including a picture showing all variables
please! Thank you
1. While I was in the Serengeti I saw people watching wildlife froma hot air balloon. Seemed great. Imagine this: You fly down there and on a wonderful day at 20°C, you are supposed to take off You are skeptical about the hot air balloon carrying you, your two friends, the operator, the operator's dog, the weight of the balloon itself and all the sandwiches and beverages. From...
i dont understand why the molecular weight i calculated (42.012 g/mol) for my unknown liquid (acetone)...
i dont understand why the molecular weight i calculated
(42.012 g/mol) for my unknown liquid (acetone) is less than the
actual molecular weight (58.08 g/mol). what errors could i have
made in my lab that would account for the difference.
Molecular Weight of a Volatile Liquid In this experiment, an amount of liquid more than sufficient to fill the flask when vaporized is placed in a flask of measured volume and mass. The flask is then heated in a boiling...
With the data given, help on the calculations please - Tes Name Determination of the Gas...
With the data given, help on the calculations please
- Tes Name Determination of the Gas Constant, R, and the Purity of KCIO, Data Unknown number or letter Mass of test tube and iron (IIT) oxide 44.5928 Mass of test tube, iron (III) oxide and sample 44.979 8 Mass of test tube and contents after heating 44.8488 Volume of water displaced Barometric pressure 976 mbar Temperature of water temperature of O, 23 Vapor pressure of water at this temperature 21.068_mm...
Problems 4, 5 & 6 15) A heat-conducting rod, 0.90 m long and wrapped in insulation,...
Problems 4, 5 & 6
15) A heat-conducting rod, 0.90 m long and wrapped in insulation, is made of an aluminum section that is 0.20 m long and a copper section that is 0.20m long. Both sections have a cross- sectional area of 0.00040 m2, The aluminum end and the copper end are maintained at temperatures of 30 C and 230 C respectively. The thermal conductivities of aluminum and copper are 205 W/m K (aluminum) and 385 W/m K (copper)....
ReviewI Constants Periodic Table The air that surrounds us is mostly empty space, and it can...
ReviewI Constants Periodic Table The air that surrounds us is mostly empty space, and it can be almost a factor of one thousand less dense than water. Within that mostly empty space, gas molecules are moving around at high speed and colliding with each other, and if you are in an enclosed space, they are also colliding with the walls. We can more easily observe the behavior of a gas by confining it to a container with a known volume,...
Based on the data of Respirstion of Peas at Room Temperature and Colder Temperature answer the...
Based on the data of Respirstion of Peas at Room Temperature and
Colder Temperature answer the following questions:
1. Write two hypothesis that this experiment is designed to
test
2. Using the general gas law (V= nRT/p) give the variables
that had to be controlled for your data to be valid. State the
controls used for each variable and any means used to correct for
the influence of a variable.
3. Why does respirometer 3 serve as a negative control?...
This problem is for a closed and stationary system. You must draw the system boundary. You must provide an answer on this page. If there is not enough room in the space provided, attach your additional pages to the assignment. 3) A mass of 14 kg air in a piston-cylinder device is heated from 25 to 77 °C by passing current through an electrical resistance heater inside the cylinder. The initial and final volumes are 10 and 20 ml respectively....
please
answer number 8
thank you
3 Fastan a ctanp at the top of the flask and position it as the stopper assembily securely into the Rask Fils the water bath wt heat the water bath unu 5 With the stoppock open to the air with the red arms positioned verticallwater n the water while heating a stopper in the sink and fw it with cold water Close the stopoock (wilth the red ama positioned horizontally) and turn a Transfer...
a.
b.
Imagine that you have a 7.00 L gas tank and a 4.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 atm, to what pressure should you fill the acetylene tank to ensure that you run out Assume ideal behavior for all gases. each gas at the same time? Express...
if
someone could do out 5 of these questions, that would be great.
thanks
Charles' Law Worksheet Name Directions: Calculate the following using Charles' Law. Assume constant pressure, number of moles, and containers are able to expand/contract. If a 6.50 L balloon at 22.0 °C is put into a refrigerator at 4.0 °C, calculate new volume. A 500 L balloon is heated from 20.0-75.0 C, calculate the final volume. A sample of gas is cooled from 180 °C to 25...
Answer all parts including a picture showing all variables
please! Thank you
1. While I was in the Serengeti I saw people watching wildlife froma hot air balloon. Seemed great. Imagine this: You fly down there and on a wonderful day at 20°C, you are supposed to take off You are skeptical about the hot air balloon carrying you, your two friends, the operator, the operator's dog, the weight of the balloon itself and all the sandwiches and beverages. From...
i dont understand why the molecular weight i calculated
(42.012 g/mol) for my unknown liquid (acetone) is less than the
actual molecular weight (58.08 g/mol). what errors could i have
made in my lab that would account for the difference.
Molecular Weight of a Volatile Liquid In this experiment, an amount of liquid more than sufficient to fill the flask when vaporized is placed in a flask of measured volume and mass. The flask is then heated in a boiling...
With the data given, help on the calculations please
- Tes Name Determination of the Gas Constant, R, and the Purity of KCIO, Data Unknown number or letter Mass of test tube and iron (IIT) oxide 44.5928 Mass of test tube, iron (III) oxide and sample 44.979 8 Mass of test tube and contents after heating 44.8488 Volume of water displaced Barometric pressure 976 mbar Temperature of water temperature of O, 23 Vapor pressure of water at this temperature 21.068_mm...
Problems 4, 5 & 6
15) A heat-conducting rod, 0.90 m long and wrapped in insulation, is made of an aluminum section that is 0.20 m long and a copper section that is 0.20m long. Both sections have a cross- sectional area of 0.00040 m2, The aluminum end and the copper end are maintained at temperatures of 30 C and 230 C respectively. The thermal conductivities of aluminum and copper are 205 W/m K (aluminum) and 385 W/m K (copper)....
ReviewI Constants Periodic Table The air that surrounds us is mostly empty space, and it can be almost a factor of one thousand less dense than water. Within that mostly empty space, gas molecules are moving around at high speed and colliding with each other, and if you are in an enclosed space, they are also colliding with the walls. We can more easily observe the behavior of a gas by confining it to a container with a known volume,...
Based on the data of Respirstion of Peas at Room Temperature and
Colder Temperature answer the following questions:
1. Write two hypothesis that this experiment is designed to
test
2. Using the general gas law (V= nRT/p) give the variables
that had to be controlled for your data to be valid. State the
controls used for each variable and any means used to correct for
the influence of a variable.
3. Why does respirometer 3 serve as a negative control?...
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