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How much heat does your body lose when 4.95 g of sweat evaporates from your skin at 25 ∘C?
(Assume that the sweat is only water.) The heat of vaporization of water at 25 ∘C is 44.0 kJ/mol.
Chemistry2 weeks agoWhy does a sample of oil evaporate more slowly than a sample of water of the same amount?
A. Intermolecular forces are stronger in the oil sample.
B. The sample of oil has lower viscosity.
C. The sample of oil has a larger surface area.
D. The density of oil is lower than that of water.
2 AnswersChemistry2 weeks agoHow much heat does your body lose when 1.7 g of sweat evaporates from your skin at 25 degrees C?
(Assume that the sweat is only water.) The heat of vaporization of water at 25 ∘C is 44.0 kJ/mol.
1 AnswerChemistry2 weeks agoHow much heat is required to vaporize 50.6 g of acetone at its boiling point? ?
The heat of vaporization of acetone at its boiling point is 29.1 kJ/mol.
Express your answer in kilojoules to three significant figures.
1 AnswerChemistry2 weeks agoA heliox deep-sea diving mixture delivers an oxygen partial pressure of 0.26 atm when the total pressure is 12.5 atm.?
What is the partial pressure of this mixture
1 AnswerChemistry3 weeks ago
Help with apple music?
Why can I not share my playlist I made yesterday I can share all my other playlist
1 AnswerMusic & Music Players3 weeks agoExpress your answer using two significant figure.?
The total pressure in an 11.0 L automobile tire is 46.0 psi at 13.0 ∘C. How much does the pressure in the tire rise if it warms to a temperature of 39.0 ∘C and the volume remains at 11.0 L?
1 AnswerPhysics4 weeks agoA bag of potato chips contains 595 mL of air at 30.0 ∘C and a pressure of 770 mmHg.?
Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 433 mmHg and the temperature is 10.0 ∘C?
2 AnswersChemistry4 weeks agoA gas sample with a volume of 5.3 L has a pressure of 745 mmHg at 29 ∘C.?
What is the pressure of the sample if the volume remains at 5.3 L but the temperature rises to 96 ∘C?
3 AnswersChemistry4 weeks agoWhat is the volume of the balloon at this depth?
A scuba diver takes a 2.3 L balloon from the surface, where the pressure is 1.1 atm and the temperature is 31 ∘C, to a depth of 25 m, where the pressure is 3.5 atm and the temperature is 14 ∘C.
3 AnswersChemistry4 weeks agoA cylinder with a moveable piston contains 216 mL of nitrogen gas at a pressure of 1.42 atm and a temperature of 293 K.?
What must the final volume be for the pressure of the gas to be 1.52 atm at a temperature of 332 K?
3 AnswersChemistry4 weeks agowhat is the final pressure of the gas?
A sample of gas with an initial volume of 27.8 L at a pressure of 735 mmHg and a temperature of 309 K is compressed to a volume of 15.8 L and warmed to a temperature of 374 K.
1 AnswerChemistry4 weeks ago
How much are these worth?
Hey I have 3 8 inch max blue thunder legend series subs and I heard they are worth a lot of cash how much are they worth?
2 AnswersCar Audio2 months agoWhat mass of octane (in g) is required to produce 1240 kJ of heat?
Octane (C8H18) is a component of gasoline that burns according to the following equation:
C8H18(l)+252O2(g)→8CO2(g)+9H2O(g)
ΔH∘rxn=−5074.1 kJ
Chemistry2 months agoWhat mass of octane (in g) is required to produce 1240 kJ of heat?
Octane (C8H18) is a component of gasoline that burns according to the following equation:
C8H18(l)+252O2(g)→8CO2(g)+9H2O(g)
ΔH∘rxn=−5074.1 kJ
1 AnswerChemistry2 months agoHow much heat is produced by the complete combustion of 288 g of CH4?
The equation for the combustion of CH4 (the main component of natural gas) is
CH4(g)+2O2(g)→CO2(g)+2H2O(g) ,ΔH∘rxn=−802.3kJ
1 AnswerChemistry2 months agoIf a bottle of nail polish remover contains 151 g of acetone, how much heat would be released by its complete combustion? ?
Consider the following equation for the combustion of acetone (C3H6O), the main ingredient in nail polish remover.
C3H6O(l)+4O2(g)→3CO2(g)+3H2O(g)ΔHrxn=−1790kJ
1 AnswerChemistry2 months ago