Homework Answers
The liquids which are sensitive to heat and which are harmed by heat and pressure are sterilized using filtration.This filtration is done using membrane filters.Membrane filters contain filter paper of size with 0.22-0.45micro meter and can trap the micro-ogansims which are more than this size when the liquid is passed through this and thus it can avoid contamination.So filtration with membrane filter is the best method to filter heat labile liquids.
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• If heat and pressure like autoclaving could harm a liquid, how could we sterilize it?
which of the following methods could not be used to sterilize broth in a flask? a....
which of the following methods could not be used to sterilize broth in a flask? a. heating in an oven b. autoclaving c. boiling d. tyndallization
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
What is the general principle behind using an autoclave? How does it work? What is the...
What is the general principle behind using an autoclave? How does it work? What is the advantage of using an autoclave (generates steam with high pressure and temperature) to sterilize surgical instruments rather than simply boiling them in water? Why must containers of liquid be open prior to autoclaving? What are sterility indicators? Why must they be used?
To sterilize a 51.0g glass bottle, we must raise the temperature from 25.0 degrees Celsius to...
To sterilize a 51.0g glass bottle, we must raise the temperature from 25.0 degrees Celsius to 88.0 degrees Celsius. How much heat transfer ( in J) is required? Joules
To sterilize a 46.0 g glass baby bottle, we must raise its temperature from 19.0°C to...
To sterilize a 46.0 g glass baby bottle, we must raise its temperature from 19.0°C to 88.0°C. How much heat transfer (in J) is required?
how could a denial of service (DOS) attack be used to harm a corporation providing a...
how could a denial of service (DOS) attack be used to harm a corporation providing a cloud based service? could this be done from another country
Describe: Moist heat: compare conditions (time, temp, pressure) and outcomes (what is killed, what survives) of...
Describe: Moist heat: compare conditions (time, temp, pressure) and outcomes (what is killed, what survives) of pasteurization, boiling and autoclaving. Dry heat: describe conditions and outcomes of flaming and hot air sterilization.
To 500 Lb of Toluene (as a saturated liquid) at atmospheric pressure, 127,500 BTU of heat....
To 500 Lb of Toluene (as a saturated liquid) at atmospheric pressure, 127,500 BTU of heat. Estimate the final temperature of the Toluene (gas) if the process is at constant pressure. Solve the problem by using the Cp's and latent heat of vaporization of Toluene reported in your book (e.g. Appendix B of Felder).
4. Liquid ammonia has a vapor pressure of 109 mm Hg at-66°C and a heat of...
4. Liquid ammonia has a vapor pressure of 109 mm Hg at-66°C and a heat of vaporization of 2.46 x 10 J/mol. a) Estimate the normal boiling point of ammonia. b) Estimate the ratio of the vapor pressure at -66°C to that at -45°C
4. Liquid ammonia has a vapor pressure of 109 mm Hg at-66°C and a heat of vaporization of 2.46 x 10 J/mol. a) Estimate the normal boiling point of ammonia. b) Estimate the ratio of the...
The vapor pressure of a liquid is the pressure exerted by its vapor when the liquid...
The vapor pressure of a liquid is the pressure exerted by its vapor when the liquid and vapor states are in equilibrium. The relationship between vapor pressure P and temperature T is expressed by the Clausius-Clapeyron equation. lnP2P1=ΔHvapR(1T1−1T2) where P1 and P2 are the vapor pressures at the absolute temperatures T1 and T2, respectively, ΔHvap is the heat of vaporization of the substance in joules per mole, and R is the ideal gas constant, which is equal to 8.3145 J/(mol⋅K)....
4. Liquid ammonia has a vapor pressure of 109 mm Hg at-66°C and a heat of vaporization of 2.46 x 10 J/mol. a) Estimate the normal boiling point of ammonia. b) Estimate the ratio of the vapor pressure at -66°C to that at -45°C
4. Liquid ammonia has a vapor pressure of 109 mm Hg at-66°C and a heat of vaporization of 2.46 x 10 J/mol. a) Estimate the normal boiling point of ammonia. b) Estimate the ratio of the...
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