What is the normal temperature of our body?
As human being is homeotherm ie., they maintain there core body temperature which is in range of 36.5–37.5'c( 97.7–99.5'c) with diurnal variation; minimum temperature at morning and maximum at 4—6PM.Fever is said when more than 37.8'c.Hyperpyrexia is more than 41'c ie., 106.7'F.Hypothermia below 35'c or 95'F.In pediatrics patients Cold stress 36–36.4'c, Moderate hypothermia 32–35.9'c, severely hypothermic <32'c.Actually temperature depends on age, sex, time of day, exercise, method of measurement, person to person.MODE OF MEASUREMENTSInvasive- pulmonary artery temperature is gold standard for core body temperature but rarely used (as invasive) , other invasive methods include esophageal, bladder, mixed venous blood.Subhepatic temperature is best for dead body temperature measurement( ALGOR MORTIS).Non invasive - most commonly used has 4 types of methods.Oral temperature—most commonly used in non invasive.Bulb of thermometer is kept at sublingual pockets below tongue for minimum 2 minutes while mouth closed and breathing from nose.Patient should not take anything before being examinedChild below 2 years are not being measured from oral route.Oral temperature is 36.4—37.2'c in normal person.2. Axillary —Bulb is placed in roof of DRY axillary for 3 minutes while patient is keeping arm close to body.It is 1'F less than oral temperature.3. Rectal - considered as minimally invasiveLubricant is put then 1/2 inch of thermometer is put in rectumIt's temperature is 0.4'c more than oral4. Intraaural ie., inside ear is fast and reliable method of detection but unadjusted one is 0.8'c less than rectal.PHYSIOLOGICAL VARIATION in women.A woman's basal body temperature rises sharply after ovulation of at least 0.5'c , as estrogen production decreases and progesterone increases. Fertility awareness programs use this change to identify when a woman has ovulated in order to achieve or avoid pregnancy but this way is not superior to contraceptives.
If 144 kJ of Energy were removed from 55.0 g of water vapor at 100 degrees Celcius, what would be the final temp of the water?
(2260 J/g) x (55.0 g) = 124300 J = 124.3 kJ for condensing the steam (144 kJ total) - (124.3 kJ) = 19.7 kJ remaining to cool the condensed steam (19.7 x 10^3 J) / (4.18 J/g·°C) / (55.0 g) = 85.7°C change 100°C - 85.7°C = 14.3°C
What is the temperature of the boiler?
Just so you know, steam engines are most certainly not Carnot cycles. Equation for Carnot efficiency: eta = 1 - T_L/T_H Solve for T_H: T_H = T_L/(1 - eta) Data (must convert T_L to Kelvin): T_L:=309.75 K; eta:=0.711; Result (converted back to Celsius): T_H = 798.6 C
A bat emits a sound whose frequency is 79.0 kHz....?
The equation relating wavelength, frequency and the speed of sound is: c = f * λ , so: λ = c/f The speed of sound as a function of temperature is: c(T) = 331.3 *sqrt(1 + T/273.15) , so: c(37.6) = 331.3*sqrt(1 + 37.6/273.15) = 353.4 (m/s), and: λ = c(37.6)/f = 353.4/79e3 = (353.4/79)*e-3 = 4.47*10^(-3) (m)
What is the opposite of a fever?
To the best of my knowledge there is no term for low body temperature other than hypothermia, and I did an online search to double-check, could find nothing. Hypothermia is how a lowered body temperature is described. If a person had a body temperature of 85.7 they would be considered hypothermic and would need immediate medical care. And, by the by, taking a temperature on your forehead is not an accurate method for geting temperature - it's affected buy surround air temperature, so if you get a reading like that, it's combined with air and your body temperature. there are three accurate places for taking temperature, under the tongue, under your arm, and in the rectum. The normal range of temperature will vary by a few decimal points depending on where you take the temp. from http://house.wikia.com/wiki/Body_tempera... On the other end of the spectrum from a fever is hypothermia, when the body temperature falls below 97°F. Shock, prolonged exposure to cold, alcohol/drug use, and some metabolic disorders (such as diabetes mellitus) can cause hypothermia. A low body temperature, just like a high one, can be caused by an infection; this occurs primarily in newborn babies, the elderly, and people who are frail. and from web md http://firstaid.webmd.com/body-temperatu... An abnormally low body temperature (hypothermia) can be serious, even life-threatening. Low body temperature may occur from cold exposure, shock, alcohol or drug use, or certain metabolic disorders, such as diabetes or hypothyroidism. A low body temperature may also be present with an infection, particularly in newborns, older adults, or people who are frail. An overwhelming infection, such as sepsis, may also cause an abnormally low body temperature.
How to calculate freezing point of solution?
You are working it correctly. The reason they gave you no m.w. or formula for benzene is that benzene is the solvent. Molal freezing point depression is the phenomenon, so you are correct to work with mols solute per Kg of solvent. You have 58.0g benzene, which is 0.0580 Kg solvent. There are several ways to calculate mols of the gaseous solute. Here, I prefer to let 4.00L given gas/(22.4L any gas at STP/mole) = (4.00L/22.4L/mol) @ STP The gas is not at 273 K and 760mmHg (STP) So, just re-proportion the temp and pressure: (4.00L/22.4L/mol)*(273K/300K)*(748mmHg... = 0.15993 mol @ STP I'll leave the rest to you. *Be sure and check my math!*
Simple math question?
If the body temperature is changing in proportion to its current temperature you will have an equation like Tf = Ti*exp(kt). You are given Tf and Ti for the two hour period between 9 and 11. Use that to solve for k, the constant, then use the Tf at either 9 or 11 to solve for t, the number of hours since time of death and subtract that amount of time from whichever time you used to find the time of death. My unchecked solution is ~12:50 AM. You should work it out and check your answer.
Why is warm beer a thing in European countries?
Different beers do better at different temperatures.First, let's just make it clear, we're not actually talking about warm (unless you're talking about hot mead, which is a whole other animal), we're talking about cool, rather than cold.Most traditional English beers are flat, rather than carbonated, and at a cool cellar temperature (not warm, but only slightly cool) are delicious, creamy in the mouth, and with deep, rich, complex flavours.If you have them chilled more than that, they're thin in the mouth, overly sour and bitter, lose their complexity, and, in my opinion, become deeply unpleasant.I find the same thing for stouts—I love stout, but a stout that is too cold is not pleasant at all (I cannot understand the ice-cold Guiness that became a thing a few years ago. I love a properly poured point of Guiness, but ice cold it tastes like cat piss.)Now, if you're talking about a lighter beer, like an IPA or a lager, they're designed to be drunk colder. In general carbonated drinks are better colder, and the flavours of these kinds of beers are fresher and more suited to colder serving temperatures. A weissbier, ice cold, can be a wonderous thing on a hot summers day.But if we're talking about, for example, darker Belgian beers, something heavier and sweeter, it probably wants temperatures that are a little higher than a lager or a weissbier, but not as high as an English bitter.Basically, temperature affects flavour. You want to drink your beer at the right temperature to get the most flavour out of it. Different flavours will come through best at different temperatures.It's exactly the same with most other foods. Most people will like their red wine less cold than their white wine, and overly cold red wine can be thin and unpleasantly sour or metallic (although red wines designed to drink at cooler temperatures are more common than they used to be). Ice cream that has melted is edible only if you're young enough for pure sugar to be tempting.