Boiling a liquid for a brief period at atmospheric pressure is not sufficient to sterilize the...
Boiling a liquid for a brief period at atmospheric pressure is not sufficient to sterilize the liquid, so autoclaves are used to increase the temperature above 100°C.
Group of answer choices
True
False
Homework Answers
Ans) The answer is "TRUE". Autoclaves are used to sterilize the media,petri plates,test tubes,etc under high pressure (more than atmospheric pressure) due to which the temperature reaches much higher or it boils at higher temperature than normal which becomes effective to kill micro-organisms more efficiently as compared to simply boiling at atmospheric pressure.
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Boiling a liquid for a brief period at atmospheric pressure is
not sufficient to sterilize the...
When the vapor pressure of a liquid equals atmospheric pressure, the temperature of the liquid equals...
When the vapor pressure of a liquid equals atmospheric pressure, the temperature of the liquid equals Group of answer choices the boiling point of the liquid the normal boiling point of the liquid 100° C 273 K
The boiling point of liquid nitrogen is 77.4 K at atmospheric pressure. (a) What is this...
The boiling point of liquid nitrogen is 77.4 K at atmospheric pressure. (a) What is this temperature on the Celsius scale? °C (b) What is this temperature on the Fahrenheit scale? °F
Liquid aluminum has a boiling point of 2450°C at atmospheric pressure. (a) Express this temperature in...
Liquid aluminum has a boiling point of 2450°C at atmospheric pressure. (a) Express this temperature in degrees Fahrenheit. (b) Express this temperature in kelvins.
Your Instant Pot pressure cooker operates at 11.6 psi above atmospheric pressure. Considering the boiling point...
Your Instant Pot pressure cooker operates at 11.6 psi above atmospheric pressure. Considering the boiling point of water (100 0C at 14.7 psi, which is normal atmospheric pressure) and the heat of vaporization of water (40.7 kJ/mol), at what temperature is the water inside the instant pot boiling when it reaches its operational pressure?
Question 3 5 pts What is the boiling point (°C) of water if the atmospheric pressure...
Question 3 5 pts What is the boiling point (°C) of water if the atmospheric pressure is 630 mmHg? atmospheric pressure)(0.037 Boiling point correction = (760 mmHg °C/mmHg) & True boiling point = 100 °C boiling point correction 4.8 O 95.2 87.3 96.4
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of...
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of the liquid and intermolecular forces of attraction in the liquid the temperature of the liquid and the surface area of the liquid only on the surface area of the liquid only the temperature of the liquid O only the forces of intermolecular attraction in the liquid Question 4 (4 points) If the atmospheric pressure over a sample of liquid is increased, the boiling point...
Boiling Point vs. Atomspheric Pressure The boiling point of water depends on atmospheric pressure. At high...
Boiling Point vs. Atomspheric Pressure The boiling point of water depends on atmospheric pressure. At high altitudes, atmospheric pressure is lower, and hence water boils at a slightly lower temperature. Plot a graph by hand for the following data treating atmospheric pressure as the independent variable. Atm Press (mm of Hg) Temperature (Co) 750 752 754 756 758 760 762 764 766 768 99.63 99.70 99.78 99.85 99.93 100.00 100.07 100.15 100.22 100.29 a) Calculate the slope of the line....
figure 1 Figure 2 Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add...
figure 1
Figure 2
Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add System comes to equilibrium ethanol Evacuated flask, pressure zero Molecules begin to vaporize, pressure increases Molecules leave and enter liquid at equal rates, pressure reaches steady-state value 34.6 °C 78.3°C 100 °C Normal boiling point Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol) Water Ethylene glycol 100 20 40 60 80 Temperature (°C) Copyright 2009 Pearson Prentice Hall,Inc. Click on: (Figure 2) and study...
The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitroge...
The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3 at 1 atm....
Which statement about atmospheric pressure is false? Select one: a. Atmospheric pressure prevents water in lakes,...
Which statement about atmospheric pressure is false? Select one: a. Atmospheric pressure prevents water in lakes, rivers, and oceans from boiling away. b. The warmer the air, the lower the atmospheric pressure. c. As air becomes thinner, its density decreases. d. With an increase in altitude, atmospheric pressure increases as well. e. Air actually has weight.
The boiling point of liquid nitrogen is 77.4 K at atmospheric pressure. (a) What is this temperature on the Celsius scale? °C (b) What is this temperature on the Fahrenheit scale? °F
Question 3 5 pts What is the boiling point (°C) of water if the atmospheric pressure is 630 mmHg? atmospheric pressure)(0.037 Boiling point correction = (760 mmHg °C/mmHg) & True boiling point = 100 °C boiling point correction 4.8 O 95.2 87.3 96.4
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of the liquid and intermolecular forces of attraction in the liquid the temperature of the liquid and the surface area of the liquid only on the surface area of the liquid only the temperature of the liquid O only the forces of intermolecular attraction in the liquid Question 4 (4 points) If the atmospheric pressure over a sample of liquid is increased, the boiling point...
figure 1
Figure 2
Liquid ethanol mm P increasing P = equilibrium vapor pressure P=0 Add System comes to equilibrium ethanol Evacuated flask, pressure zero Molecules begin to vaporize, pressure increases Molecules leave and enter liquid at equal rates, pressure reaches steady-state value 34.6 °C 78.3°C 100 °C Normal boiling point Diethyl ether Vapor pressure (torr) Ethyl alcohol (ethanol) Water Ethylene glycol 100 20 40 60 80 Temperature (°C) Copyright 2009 Pearson Prentice Hall,Inc. Click on: (Figure 2) and study...
The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3 at 1 atm....
Which statement about atmospheric pressure is false? Select one: a. Atmospheric pressure prevents water in lakes, rivers, and oceans from boiling away. b. The warmer the air, the lower the atmospheric pressure. c. As air becomes thinner, its density decreases. d. With an increase in altitude, atmospheric pressure increases as well. e. Air actually has weight.
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